Rename ffplay to avplay.

1 files changed, 3071 insertions, 0 deletions

diff --git a/avplay.c b/avplay.c
new file mode 100644
index 0000000000..f43cf6faa6
--- /dev/null
+++ b/avplay.c
@@ -0,0 +1,3071 @@
+/*
+ * avplay : Simple Media Player based on the Libav libraries
+ * Copyright (c) 2003 Fabrice Bellard
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+#include <inttypes.h>
+#include <math.h>
+#include <limits.h>
+#include "libavutil/avstring.h"
+#include "libavutil/colorspace.h"
+#include "libavutil/mathematics.h"
+#include "libavutil/pixdesc.h"
+#include "libavutil/imgutils.h"
+#include "libavutil/dict.h"
+#include "libavutil/parseutils.h"
+#include "libavutil/samplefmt.h"
+#include "libavformat/avformat.h"
+#include "libavdevice/avdevice.h"
+#include "libswscale/swscale.h"
+#include "libavcodec/audioconvert.h"
+#include "libavutil/opt.h"
+#include "libavcodec/avfft.h"
+
+#if CONFIG_AVFILTER
+# include "libavfilter/avfilter.h"
+# include "libavfilter/avfiltergraph.h"
+#endif
+
+#include "cmdutils.h"
+
+#include <SDL.h>
+#include <SDL_thread.h>
+
+#ifdef __MINGW32__
+#undef main /* We don't want SDL to override our main() */
+#endif
+
+#include <unistd.h>
+#include <assert.h>
+
+const char program_name[] = "avplay";
+const int program_birth_year = 2003;
+
+#define MAX_QUEUE_SIZE (15 * 1024 * 1024)
+#define MIN_AUDIOQ_SIZE (20 * 16 * 1024)
+#define MIN_FRAMES 5
+
+/* SDL audio buffer size, in samples. Should be small to have precise
+   A/V sync as SDL does not have hardware buffer fullness info. */
+#define SDL_AUDIO_BUFFER_SIZE 1024
+
+/* no AV sync correction is done if below the AV sync threshold */
+#define AV_SYNC_THRESHOLD 0.01
+/* no AV correction is done if too big error */
+#define AV_NOSYNC_THRESHOLD 10.0
+
+#define FRAME_SKIP_FACTOR 0.05
+
+/* maximum audio speed change to get correct sync */
+#define SAMPLE_CORRECTION_PERCENT_MAX 10
+
+/* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
+#define AUDIO_DIFF_AVG_NB   20
+
+/* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
+#define SAMPLE_ARRAY_SIZE (2*65536)
+
+static int sws_flags = SWS_BICUBIC;
+
+typedef struct PacketQueue {
+    AVPacketList *first_pkt, *last_pkt;
+    int nb_packets;
+    int size;
+    int abort_request;
+    SDL_mutex *mutex;
+    SDL_cond *cond;
+} PacketQueue;
+
+#define VIDEO_PICTURE_QUEUE_SIZE 2
+#define SUBPICTURE_QUEUE_SIZE 4
+
+typedef struct VideoPicture {
+    double pts;                                  ///<presentation time stamp for this picture
+    double target_clock;                         ///<av_gettime() time at which this should be displayed ideally
+    int64_t pos;                                 ///<byte position in file
+    SDL_Overlay *bmp;
+    int width, height; /* source height & width */
+    int allocated;
+    enum PixelFormat pix_fmt;
+
+#if CONFIG_AVFILTER
+    AVFilterBufferRef *picref;
+#endif
+} VideoPicture;
+
+typedef struct SubPicture {
+    double pts; /* presentation time stamp for this picture */
+    AVSubtitle sub;
+} SubPicture;
+
+enum {
+    AV_SYNC_AUDIO_MASTER, /* default choice */
+    AV_SYNC_VIDEO_MASTER,
+    AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
+};
+
+typedef struct VideoState {
+    SDL_Thread *parse_tid;
+    SDL_Thread *video_tid;
+    SDL_Thread *refresh_tid;
+    AVInputFormat *iformat;
+    int no_background;
+    int abort_request;
+    int paused;
+    int last_paused;
+    int seek_req;
+    int seek_flags;
+    int64_t seek_pos;
+    int64_t seek_rel;
+    int read_pause_return;
+    AVFormatContext *ic;
+    int dtg_active_format;
+
+    int audio_stream;
+
+    int av_sync_type;
+    double external_clock; /* external clock base */
+    int64_t external_clock_time;
+
+    double audio_clock;
+    double audio_diff_cum; /* used for AV difference average computation */
+    double audio_diff_avg_coef;
+    double audio_diff_threshold;
+    int audio_diff_avg_count;
+    AVStream *audio_st;
+    PacketQueue audioq;
+    int audio_hw_buf_size;
+    /* samples output by the codec. we reserve more space for avsync
+       compensation */
+    DECLARE_ALIGNED(16,uint8_t,audio_buf1)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
+    DECLARE_ALIGNED(16,uint8_t,audio_buf2)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
+    uint8_t *audio_buf;
+    unsigned int audio_buf_size; /* in bytes */
+    int audio_buf_index; /* in bytes */
+    AVPacket audio_pkt_temp;
+    AVPacket audio_pkt;
+    enum AVSampleFormat audio_src_fmt;
+    AVAudioConvert *reformat_ctx;
+
+    int show_audio; /* if true, display audio samples */
+    int16_t sample_array[SAMPLE_ARRAY_SIZE];
+    int sample_array_index;
+    int last_i_start;
+    RDFTContext *rdft;
+    int rdft_bits;
+    FFTSample *rdft_data;
+    int xpos;
+
+    SDL_Thread *subtitle_tid;
+    int subtitle_stream;
+    int subtitle_stream_changed;
+    AVStream *subtitle_st;
+    PacketQueue subtitleq;
+    SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
+    int subpq_size, subpq_rindex, subpq_windex;
+    SDL_mutex *subpq_mutex;
+    SDL_cond *subpq_cond;
+
+    double frame_timer;
+    double frame_last_pts;
+    double frame_last_delay;
+    double video_clock;                          ///<pts of last decoded frame / predicted pts of next decoded frame
+    int video_stream;
+    AVStream *video_st;
+    PacketQueue videoq;
+    double video_current_pts;                    ///<current displayed pts (different from video_clock if frame fifos are used)
+    double video_current_pts_drift;              ///<video_current_pts - time (av_gettime) at which we updated video_current_pts - used to have running video pts
+    int64_t video_current_pos;                   ///<current displayed file pos
+    VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
+    int pictq_size, pictq_rindex, pictq_windex;
+    SDL_mutex *pictq_mutex;
+    SDL_cond *pictq_cond;
+#if !CONFIG_AVFILTER
+    struct SwsContext *img_convert_ctx;
+#endif
+
+    //    QETimer *video_timer;
+    char filename[1024];
+    int width, height, xleft, ytop;
+
+    PtsCorrectionContext pts_ctx;
+
+#if CONFIG_AVFILTER
+    AVFilterContext *out_video_filter;          ///<the last filter in the video chain
+#endif
+
+    float skip_frames;
+    float skip_frames_index;
+    int refresh;
+} VideoState;
+
+static void show_help(void);
+
+/* options specified by the user */
+static AVInputFormat *file_iformat;
+static const char *input_filename;
+static const char *window_title;
+static int fs_screen_width;
+static int fs_screen_height;
+static int screen_width = 0;
+static int screen_height = 0;
+static int audio_disable;
+static int video_disable;
+static int wanted_stream[AVMEDIA_TYPE_NB]={
+    [AVMEDIA_TYPE_AUDIO]=-1,
+    [AVMEDIA_TYPE_VIDEO]=-1,
+    [AVMEDIA_TYPE_SUBTITLE]=-1,
+};
+static int seek_by_bytes=-1;
+static int display_disable;
+static int show_status = 1;
+static int av_sync_type = AV_SYNC_AUDIO_MASTER;
+static int64_t start_time = AV_NOPTS_VALUE;
+static int64_t duration = AV_NOPTS_VALUE;
+static int debug = 0;
+static int debug_mv = 0;
+static int step = 0;
+static int thread_count = 1;
+static int workaround_bugs = 1;
+static int fast = 0;
+static int genpts = 0;
+static int lowres = 0;
+static int idct = FF_IDCT_AUTO;
+static enum AVDiscard skip_frame= AVDISCARD_DEFAULT;
+static enum AVDiscard skip_idct= AVDISCARD_DEFAULT;
+static enum AVDiscard skip_loop_filter= AVDISCARD_DEFAULT;
+static int error_recognition = FF_ER_CAREFUL;
+static int error_concealment = 3;
+static int decoder_reorder_pts= -1;
+static int autoexit;
+static int exit_on_keydown;
+static int exit_on_mousedown;
+static int loop=1;
+static int framedrop=1;
+
+static int rdftspeed=20;
+#if CONFIG_AVFILTER
+static char *vfilters = NULL;
+#endif
+
+/* current context */
+static int is_full_screen;
+static VideoState *cur_stream;
+static int64_t audio_callback_time;
+
+static AVPacket flush_pkt;
+
+#define FF_ALLOC_EVENT   (SDL_USEREVENT)
+#define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
+#define FF_QUIT_EVENT    (SDL_USEREVENT + 2)
+
+static SDL_Surface *screen;
+
+static int packet_queue_put(PacketQueue *q, AVPacket *pkt);
+
+/* packet queue handling */
+static void packet_queue_init(PacketQueue *q)
+{
+    memset(q, 0, sizeof(PacketQueue));
+    q->mutex = SDL_CreateMutex();
+    q->cond = SDL_CreateCond();
+    packet_queue_put(q, &flush_pkt);
+}
+
+static void packet_queue_flush(PacketQueue *q)
+{
+    AVPacketList *pkt, *pkt1;
+
+    SDL_LockMutex(q->mutex);
+    for(pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
+        pkt1 = pkt->next;
+        av_free_packet(&pkt->pkt);
+        av_freep(&pkt);
+    }
+    q->last_pkt = NULL;
+    q->first_pkt = NULL;
+    q->nb_packets = 0;
+    q->size = 0;
+    SDL_UnlockMutex(q->mutex);
+}
+
+static void packet_queue_end(PacketQueue *q)
+{
+    packet_queue_flush(q);
+    SDL_DestroyMutex(q->mutex);
+    SDL_DestroyCond(q->cond);
+}
+
+static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
+{
+    AVPacketList *pkt1;
+
+    /* duplicate the packet */
+    if (pkt!=&flush_pkt && av_dup_packet(pkt) < 0)
+        return -1;
+
+    pkt1 = av_malloc(sizeof(AVPacketList));
+    if (!pkt1)
+        return -1;
+    pkt1->pkt = *pkt;
+    pkt1->next = NULL;
+
+
+    SDL_LockMutex(q->mutex);
+
+    if (!q->last_pkt)
+
+        q->first_pkt = pkt1;
+    else
+        q->last_pkt->next = pkt1;
+    q->last_pkt = pkt1;
+    q->nb_packets++;
+    q->size += pkt1->pkt.size + sizeof(*pkt1);
+    /* XXX: should duplicate packet data in DV case */
+    SDL_CondSignal(q->cond);
+
+    SDL_UnlockMutex(q->mutex);
+    return 0;
+}
+
+static void packet_queue_abort(PacketQueue *q)
+{
+    SDL_LockMutex(q->mutex);
+
+    q->abort_request = 1;
+
+    SDL_CondSignal(q->cond);
+
+    SDL_UnlockMutex(q->mutex);
+}
+
+/* return < 0 if aborted, 0 if no packet and > 0 if packet.  */
+static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
+{
+    AVPacketList *pkt1;
+    int ret;
+
+    SDL_LockMutex(q->mutex);
+
+    for(;;) {
+        if (q->abort_request) {
+            ret = -1;
+            break;
+        }
+
+        pkt1 = q->first_pkt;
+        if (pkt1) {
+            q->first_pkt = pkt1->next;
+            if (!q->first_pkt)
+                q->last_pkt = NULL;
+            q->nb_packets--;
+            q->size -= pkt1->pkt.size + sizeof(*pkt1);
+            *pkt = pkt1->pkt;
+            av_free(pkt1);
+            ret = 1;
+            break;
+        } else if (!block) {
+            ret = 0;
+            break;
+        } else {
+            SDL_CondWait(q->cond, q->mutex);
+        }
+    }
+    SDL_UnlockMutex(q->mutex);
+    return ret;
+}
+
+static inline void fill_rectangle(SDL_Surface *screen,
+                                  int x, int y, int w, int h, int color)
+{
+    SDL_Rect rect;
+    rect.x = x;
+    rect.y = y;
+    rect.w = w;
+    rect.h = h;
+    SDL_FillRect(screen, &rect, color);
+}
+
+#define ALPHA_BLEND(a, oldp, newp, s)\
+((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
+
+#define RGBA_IN(r, g, b, a, s)\
+{\
+    unsigned int v = ((const uint32_t *)(s))[0];\
+    a = (v >> 24) & 0xff;\
+    r = (v >> 16) & 0xff;\
+    g = (v >> 8) & 0xff;\
+    b = v & 0xff;\
+}
+
+#define YUVA_IN(y, u, v, a, s, pal)\
+{\
+    unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
+    a = (val >> 24) & 0xff;\
+    y = (val >> 16) & 0xff;\
+    u = (val >> 8) & 0xff;\
+    v = val & 0xff;\
+}
+
+#define YUVA_OUT(d, y, u, v, a)\
+{\
+    ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
+}
+
+
+#define BPP 1
+
+static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
+{
+    int wrap, wrap3, width2, skip2;
+    int y, u, v, a, u1, v1, a1, w, h;
+    uint8_t *lum, *cb, *cr;
+    const uint8_t *p;
+    const uint32_t *pal;
+    int dstx, dsty, dstw, dsth;
+
+    dstw = av_clip(rect->w, 0, imgw);
+    dsth = av_clip(rect->h, 0, imgh);
+    dstx = av_clip(rect->x, 0, imgw - dstw);
+    dsty = av_clip(rect->y, 0, imgh - dsth);
+    lum = dst->data[0] + dsty * dst->linesize[0];
+    cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
+    cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
+
+    width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
+    skip2 = dstx >> 1;
+    wrap = dst->linesize[0];
+    wrap3 = rect->pict.linesize[0];
+    p = rect->pict.data[0];
+    pal = (const uint32_t *)rect->pict.data[1];  /* Now in YCrCb! */
+
+    if (dsty & 1) {
+        lum += dstx;
+        cb += skip2;
+        cr += skip2;
+
+        if (dstx & 1) {
+            YUVA_IN(y, u, v, a, p, pal);
+            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
+            cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
+            cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
+            cb++;
+            cr++;
+            lum++;
+            p += BPP;
+        }
+        for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
+            YUVA_IN(y, u, v, a, p, pal);
+            u1 = u;
+            v1 = v;
+            a1 = a;
+            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
+
+            YUVA_IN(y, u, v, a, p + BPP, pal);
+            u1 += u;
+            v1 += v;
+            a1 += a;
+            lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
+            cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
+            cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
+            cb++;
+            cr++;
+            p += 2 * BPP;
+            lum += 2;
+        }
+        if (w) {
+            YUVA_IN(y, u, v, a, p, pal);
+            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
+            cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
+            cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
+            p++;
+            lum++;
+        }
+        p += wrap3 - dstw * BPP;
+        lum += wrap - dstw - dstx;
+        cb += dst->linesize[1] - width2 - skip2;
+        cr += dst->linesize[2] - width2 - skip2;
+    }
+    for(h = dsth - (dsty & 1); h >= 2; h -= 2) {
+        lum += dstx;
+        cb += skip2;
+        cr += skip2;
+
+        if (dstx & 1) {
+            YUVA_IN(y, u, v, a, p, pal);
+            u1 = u;
+            v1 = v;
+            a1 = a;
+            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
+            p += wrap3;
+            lum += wrap;
+            YUVA_IN(y, u, v, a, p, pal);
+            u1 += u;
+            v1 += v;
+            a1 += a;
+            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
+            cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
+            cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
+            cb++;
+            cr++;
+            p += -wrap3 + BPP;
+            lum += -wrap + 1;
+        }
+        for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
+            YUVA_IN(y, u, v, a, p, pal);
+            u1 = u;
+            v1 = v;
+            a1 = a;
+            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
+
+            YUVA_IN(y, u, v, a, p + BPP, pal);
+            u1 += u;
+            v1 += v;
+            a1 += a;
+            lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
+            p += wrap3;
+            lum += wrap;
+
+            YUVA_IN(y, u, v, a, p, pal);
+            u1 += u;
+            v1 += v;
+            a1 += a;
+            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
+
+            YUVA_IN(y, u, v, a, p + BPP, pal);
+            u1 += u;
+            v1 += v;
+            a1 += a;
+            lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
+
+            cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
+            cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
+
+            cb++;
+            cr++;
+            p += -wrap3 + 2 * BPP;
+            lum += -wrap + 2;
+        }
+        if (w) {
+            YUVA_IN(y, u, v, a, p, pal);
+            u1 = u;
+            v1 = v;
+            a1 = a;
+            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
+            p += wrap3;
+            lum += wrap;
+            YUVA_IN(y, u, v, a, p, pal);
+            u1 += u;
+            v1 += v;
+            a1 += a;
+            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
+            cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
+            cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
+            cb++;
+            cr++;
+            p += -wrap3 + BPP;
+            lum += -wrap + 1;
+        }
+        p += wrap3 + (wrap3 - dstw * BPP);
+        lum += wrap + (wrap - dstw - dstx);
+        cb += dst->linesize[1] - width2 - skip2;
+        cr += dst->linesize[2] - width2 - skip2;
+    }
+    /* handle odd height */
+    if (h) {
+        lum += dstx;
+        cb += skip2;
+        cr += skip2;
+
+        if (dstx & 1) {
+            YUVA_IN(y, u, v, a, p, pal);
+            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
+            cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
+            cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
+            cb++;
+            cr++;
+            lum++;
+            p += BPP;
+        }
+        for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
+            YUVA_IN(y, u, v, a, p, pal);
+            u1 = u;
+            v1 = v;
+            a1 = a;
+            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
+
+            YUVA_IN(y, u, v, a, p + BPP, pal);
+            u1 += u;
+            v1 += v;
+            a1 += a;
+            lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
+            cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
+            cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
+            cb++;
+            cr++;
+            p += 2 * BPP;
+            lum += 2;
+        }
+        if (w) {
+            YUVA_IN(y, u, v, a, p, pal);
+            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
+            cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
+            cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
+        }
+    }
+}
+
+static void free_subpicture(SubPicture *sp)
+{
+    avsubtitle_free(&sp->sub);
+}
+
+static void video_image_display(VideoState *is)
+{
+    VideoPicture *vp;
+    SubPicture *sp;
+    AVPicture pict;
+    float aspect_ratio;
+    int width, height, x, y;
+    SDL_Rect rect;
+    int i;
+
+    vp = &is->pictq[is->pictq_rindex];
+    if (vp->bmp) {
+#if CONFIG_AVFILTER
+         if (vp->picref->video->pixel_aspect.num == 0)
+             aspect_ratio = 0;
+         else
+             aspect_ratio = av_q2d(vp->picref->video->pixel_aspect);
+#else
+
+        /* XXX: use variable in the frame */
+        if (is->video_st->sample_aspect_ratio.num)
+            aspect_ratio = av_q2d(is->video_st->sample_aspect_ratio);
+        else if (is->video_st->codec->sample_aspect_ratio.num)
+            aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio);
+        else
+            aspect_ratio = 0;
+#endif
+        if (aspect_ratio <= 0.0)
+            aspect_ratio = 1.0;
+        aspect_ratio *= (float)vp->width / (float)vp->height;
+
+        if (is->subtitle_st)
+        {
+            if (is->subpq_size > 0)
+            {
+                sp = &is->subpq[is->subpq_rindex];
+
+                if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000))
+                {
+                    SDL_LockYUVOverlay (vp->bmp);
+
+                    pict.data[0] = vp->bmp->pixels[0];
+                    pict.data[1] = vp->bmp->pixels[2];
+                    pict.data[2] = vp->bmp->pixels[1];
+
+                    pict.linesize[0] = vp->bmp->pitches[0];
+                    pict.linesize[1] = vp->bmp->pitches[2];
+                    pict.linesize[2] = vp->bmp->pitches[1];
+
+                    for (i = 0; i < sp->sub.num_rects; i++)
+                        blend_subrect(&pict, sp->sub.rects[i],
+                                      vp->bmp->w, vp->bmp->h);
+
+                    SDL_UnlockYUVOverlay (vp->bmp);
+                }
+            }
+        }
+
+
+        /* XXX: we suppose the screen has a 1.0 pixel ratio */
+        height = is->height;
+        width = ((int)rint(height * aspect_ratio)) & ~1;
+        if (width > is->width) {
+            width = is->width;
+            height = ((int)rint(width / aspect_ratio)) & ~1;
+        }
+        x = (is->width - width) / 2;
+        y = (is->height - height) / 2;
+        is->no_background = 0;
+        rect.x = is->xleft + x;
+        rect.y = is->ytop  + y;
+        rect.w = width;
+        rect.h = height;
+        SDL_DisplayYUVOverlay(vp->bmp, &rect);
+    }
+}
+
+/* get the current audio output buffer size, in samples. With SDL, we
+   cannot have a precise information */
+static int audio_write_get_buf_size(VideoState *is)
+{
+    return is->audio_buf_size - is->audio_buf_index;
+}
+
+static inline int compute_mod(int a, int b)
+{
+    a = a % b;
+    if (a >= 0)
+        return a;
+    else
+        return a + b;
+}
+
+static void video_audio_display(VideoState *s)
+{
+    int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
+    int ch, channels, h, h2, bgcolor, fgcolor;
+    int16_t time_diff;
+    int rdft_bits, nb_freq;
+
+    for(rdft_bits=1; (1<<rdft_bits)<2*s->height; rdft_bits++)
+        ;
+    nb_freq= 1<<(rdft_bits-1);
+
+    /* compute display index : center on currently output samples */
+    channels = s->audio_st->codec->channels;
+    nb_display_channels = channels;
+    if (!s->paused) {
+        int data_used= s->show_audio==1 ? s->width : (2*nb_freq);
+        n = 2 * channels;
+        delay = audio_write_get_buf_size(s);
+        delay /= n;
+
+        /* to be more precise, we take into account the time spent since
+           the last buffer computation */
+        if (audio_callback_time) {
+            time_diff = av_gettime() - audio_callback_time;
+            delay -= (time_diff * s->audio_st->codec->sample_rate) / 1000000;
+        }
+
+        delay += 2*data_used;
+        if (delay < data_used)
+            delay = data_used;
+
+        i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
+        if(s->show_audio==1){
+            h= INT_MIN;
+            for(i=0; i<1000; i+=channels){
+                int idx= (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
+                int a= s->sample_array[idx];
+                int b= s->sample_array[(idx + 4*channels)%SAMPLE_ARRAY_SIZE];
+                int c= s->sample_array[(idx + 5*channels)%SAMPLE_ARRAY_SIZE];
+                int d= s->sample_array[(idx + 9*channels)%SAMPLE_ARRAY_SIZE];
+                int score= a-d;
+                if(h<score && (b^c)<0){
+                    h= score;
+                    i_start= idx;
+                }
+            }
+        }
+
+        s->last_i_start = i_start;
+    } else {
+        i_start = s->last_i_start;
+    }
+
+    bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
+    if(s->show_audio==1){
+        fill_rectangle(screen,
+                       s->xleft, s->ytop, s->width, s->height,
+                       bgcolor);
+
+        fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
+
+        /* total height for one channel */
+        h = s->height / nb_display_channels;
+        /* graph height / 2 */
+        h2 = (h * 9) / 20;
+        for(ch = 0;ch < nb_display_channels; ch++) {
+            i = i_start + ch;
+            y1 = s->ytop + ch * h + (h / 2); /* position of center line */
+            for(x = 0; x < s->width; x++) {
+                y = (s->sample_array[i] * h2) >> 15;
+                if (y < 0) {
+                    y = -y;
+                    ys = y1 - y;
+                } else {
+                    ys = y1;
+                }
+                fill_rectangle(screen,
+                               s->xleft + x, ys, 1, y,
+                               fgcolor);
+                i += channels;
+                if (i >= SAMPLE_ARRAY_SIZE)
+                    i -= SAMPLE_ARRAY_SIZE;
+            }
+        }
+
+        fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
+
+        for(ch = 1;ch < nb_display_channels; ch++) {
+            y = s->ytop + ch * h;
+            fill_rectangle(screen,
+                           s->xleft, y, s->width, 1,
+                           fgcolor);
+        }
+        SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
+    }else{
+        nb_display_channels= FFMIN(nb_display_channels, 2);
+        if(rdft_bits != s->rdft_bits){
+            av_rdft_end(s->rdft);
+            av_free(s->rdft_data);
+            s->rdft = av_rdft_init(rdft_bits, DFT_R2C);
+            s->rdft_bits= rdft_bits;
+            s->rdft_data= av_malloc(4*nb_freq*sizeof(*s->rdft_data));
+        }
+        {
+            FFTSample *data[2];
+            for(ch = 0;ch < nb_display_channels; ch++) {
+                data[ch] = s->rdft_data + 2*nb_freq*ch;
+                i = i_start + ch;
+                for(x = 0; x < 2*nb_freq; x++) {
+                    double w= (x-nb_freq)*(1.0/nb_freq);
+                    data[ch][x]= s->sample_array[i]*(1.0-w*w);
+                    i += channels;
+                    if (i >= SAMPLE_ARRAY_SIZE)
+                        i -= SAMPLE_ARRAY_SIZE;
+                }
+                av_rdft_calc(s->rdft, data[ch]);
+            }
+            //least efficient way to do this, we should of course directly access it but its more than fast enough
+            for(y=0; y<s->height; y++){
+                double w= 1/sqrt(nb_freq);
+                int a= sqrt(w*sqrt(data[0][2*y+0]*data[0][2*y+0] + data[0][2*y+1]*data[0][2*y+1]));
+                int b= (nb_display_channels == 2 ) ? sqrt(w*sqrt(data[1][2*y+0]*data[1][2*y+0]
+                       + data[1][2*y+1]*data[1][2*y+1])) : a;
+                a= FFMIN(a,255);
+                b= FFMIN(b,255);
+                fgcolor = SDL_MapRGB(screen->format, a, b, (a+b)/2);
+
+                fill_rectangle(screen,
+                            s->xpos, s->height-y, 1, 1,
+                            fgcolor);
+            }
+        }
+        SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
+        s->xpos++;
+        if(s->xpos >= s->width)
+            s->xpos= s->xleft;
+    }
+}
+
+static int video_open(VideoState *is){
+    int flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
+    int w,h;
+
+    if(is_full_screen) flags |= SDL_FULLSCREEN;
+    else               flags |= SDL_RESIZABLE;
+
+    if (is_full_screen && fs_screen_width) {
+        w = fs_screen_width;
+        h = fs_screen_height;
+    } else if(!is_full_screen && screen_width){
+        w = screen_width;
+        h = screen_height;
+#if CONFIG_AVFILTER
+    }else if (is->out_video_filter && is->out_video_filter->inputs[0]){
+        w = is->out_video_filter->inputs[0]->w;
+        h = is->out_video_filter->inputs[0]->h;
+#else
+    }else if (is->video_st && is->video_st->codec->width){
+        w = is->video_st->codec->width;
+        h = is->video_st->codec->height;
+#endif
+    } else {
+        w = 640;
+        h = 480;
+    }
+    if(screen && is->width == screen->w && screen->w == w
+       && is->height== screen->h && screen->h == h)
+        return 0;
+
+#ifndef __APPLE__
+    screen = SDL_SetVideoMode(w, h, 0, flags);
+#else
+    /* setting bits_per_pixel = 0 or 32 causes blank video on OS X */
+    screen = SDL_SetVideoMode(w, h, 24, flags);
+#endif
+    if (!screen) {
+        fprintf(stderr, "SDL: could not set video mode - exiting\n");
+        return -1;
+    }
+    if (!window_title)
+        window_title = input_filename;
+    SDL_WM_SetCaption(window_title, window_title);
+
+    is->width = screen->w;
+    is->height = screen->h;
+
+    return 0;
+}
+
+/* display the current picture, if any */
+static void video_display(VideoState *is)
+{
+    if(!screen)
+        video_open(cur_stream);
+    if (is->audio_st && is->show_audio)
+        video_audio_display(is);
+    else if (is->video_st)
+        video_image_display(is);
+}
+
+static int refresh_thread(void *opaque)
+{
+    VideoState *is= opaque;
+    while(!is->abort_request){
+        SDL_Event event;
+        event.type = FF_REFRESH_EVENT;
+        event.user.data1 = opaque;
+        if(!is->refresh){
+            is->refresh=1;
+            SDL_PushEvent(&event);
+        }
+        usleep(is->audio_st && is->show_audio ? rdftspeed*1000 : 5000); //FIXME ideally we should wait the correct time but SDLs event passing is so slow it would be silly
+    }
+    return 0;
+}
+
+/* get the current audio clock value */
+static double get_audio_clock(VideoState *is)
+{
+    double pts;
+    int hw_buf_size, bytes_per_sec;
+    pts = is->audio_clock;
+    hw_buf_size = audio_write_get_buf_size(is);
+    bytes_per_sec = 0;
+    if (is->audio_st) {
+        bytes_per_sec = is->audio_st->codec->sample_rate *
+            2 * is->audio_st->codec->channels;
+    }
+    if (bytes_per_sec)
+        pts -= (double)hw_buf_size / bytes_per_sec;
+    return pts;
+}
+
+/* get the current video clock value */
+static double get_video_clock(VideoState *is)
+{
+    if (is->paused) {
+        return is->video_current_pts;
+    } else {
+        return is->video_current_pts_drift + av_gettime() / 1000000.0;
+    }
+}
+
+/* get the current external clock value */
+static double get_external_clock(VideoState *is)
+{
+    int64_t ti;
+    ti = av_gettime();
+    return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
+}
+
+/* get the current master clock value */
+static double get_master_clock(VideoState *is)
+{
+    double val;
+
+    if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
+        if (is->video_st)
+            val = get_video_clock(is);
+        else
+            val = get_audio_clock(is);
+    } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
+        if (is->audio_st)
+            val = get_audio_clock(is);
+        else
+            val = get_video_clock(is);
+    } else {
+        val = get_external_clock(is);
+    }
+    return val;
+}
+
+/* seek in the stream */
+static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
+{
+    if (!is->seek_req) {
+        is->seek_pos = pos;
+        is->seek_rel = rel;
+        is->seek_flags &= ~AVSEEK_FLAG_BYTE;
+        if (seek_by_bytes)
+            is->seek_flags |= AVSEEK_FLAG_BYTE;
+        is->seek_req = 1;
+    }
+}
+
+/* pause or resume the video */
+static void stream_pause(VideoState *is)
+{
+    if (is->paused) {
+        is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts;
+        if(is->read_pause_return != AVERROR(ENOSYS)){
+            is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0;
+        }
+        is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
+    }
+    is->paused = !is->paused;
+}
+
+static double compute_target_time(double frame_current_pts, VideoState *is)
+{
+    double delay, sync_threshold, diff;
+
+    /* compute nominal delay */
+    delay = frame_current_pts - is->frame_last_pts;
+    if (delay <= 0 || delay >= 10.0) {
+        /* if incorrect delay, use previous one */
+        delay = is->frame_last_delay;
+    } else {
+        is->frame_last_delay = delay;
+    }
+    is->frame_last_pts = frame_current_pts;
+
+    /* update delay to follow master synchronisation source */
+    if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
+         is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
+        /* if video is slave, we try to correct big delays by
+           duplicating or deleting a frame */
+        diff = get_video_clock(is) - get_master_clock(is);
+
+        /* skip or repeat frame. We take into account the
+           delay to compute the threshold. I still don't know
+           if it is the best guess */
+        sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
+        if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
+            if (diff <= -sync_threshold)
+                delay = 0;
+            else if (diff >= sync_threshold)
+                delay = 2 * delay;
+        }
+    }
+    is->frame_timer += delay;
+
+    av_dlog(NULL, "video: delay=%0.3f pts=%0.3f A-V=%f\n",
+            delay, frame_current_pts, -diff);
+
+    return is->frame_timer;
+}
+
+/* called to display each frame */
+static void video_refresh_timer(void *opaque)
+{
+    VideoState *is = opaque;
+    VideoPicture *vp;
+
+    SubPicture *sp, *sp2;
+
+    if (is->video_st) {
+retry:
+        if (is->pictq_size == 0) {
+            //nothing to do, no picture to display in the que
+        } else {
+            double time= av_gettime()/1000000.0;
+            double next_target;
+            /* dequeue the picture */
+            vp = &is->pictq[is->pictq_rindex];
+
+            if(time < vp->target_clock)
+                return;
+            /* update current video pts */
+            is->video_current_pts = vp->pts;
+            is->video_current_pts_drift = is->video_current_pts - time;
+            is->video_current_pos = vp->pos;
+            if(is->pictq_size > 1){
+                VideoPicture *nextvp= &is->pictq[(is->pictq_rindex+1)%VIDEO_PICTURE_QUEUE_SIZE];
+                assert(nextvp->target_clock >= vp->target_clock);
+                next_target= nextvp->target_clock;
+            }else{
+                next_target= vp->target_clock + is->video_clock - vp->pts; //FIXME pass durations cleanly
+            }
+            if(framedrop && time > next_target){
+                is->skip_frames *= 1.0 + FRAME_SKIP_FACTOR;
+                if(is->pictq_size > 1 || time > next_target + 0.5){
+                    /* update queue size and signal for next picture */
+                    if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
+                        is->pictq_rindex = 0;
+
+                    SDL_LockMutex(is->pictq_mutex);
+                    is->pictq_size--;
+                    SDL_CondSignal(is->pictq_cond);
+                    SDL_UnlockMutex(is->pictq_mutex);
+                    goto retry;
+                }
+            }
+
+            if(is->subtitle_st) {
+                if (is->subtitle_stream_changed) {
+                    SDL_LockMutex(is->subpq_mutex);
+
+                    while (is->subpq_size) {
+                        free_subpicture(&is->subpq[is->subpq_rindex]);
+
+                        /* update queue size and signal for next picture */
+                        if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
+                            is->subpq_rindex = 0;
+
+                        is->subpq_size--;
+                    }
+                    is->subtitle_stream_changed = 0;
+
+                    SDL_CondSignal(is->subpq_cond);
+                    SDL_UnlockMutex(is->subpq_mutex);
+                } else {
+                    if (is->subpq_size > 0) {
+                        sp = &is->subpq[is->subpq_rindex];
+
+                        if (is->subpq_size > 1)
+                            sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
+                        else
+                            sp2 = NULL;
+
+                        if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
+                                || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
+                        {
+                            free_subpicture(sp);
+
+                            /* update queue size and signal for next picture */
+                            if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
+                                is->subpq_rindex = 0;
+
+                            SDL_LockMutex(is->subpq_mutex);
+                            is->subpq_size--;
+                            SDL_CondSignal(is->subpq_cond);
+                            SDL_UnlockMutex(is->subpq_mutex);
+                        }
+                    }
+                }
+            }
+
+            /* display picture */
+            if (!display_disable)
+                video_display(is);
+
+            /* update queue size and signal for next picture */
+            if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
+                is->pictq_rindex = 0;
+
+            SDL_LockMutex(is->pictq_mutex);
+            is->pictq_size--;
+            SDL_CondSignal(is->pictq_cond);
+            SDL_UnlockMutex(is->pictq_mutex);
+        }
+    } else if (is->audio_st) {
+        /* draw the next audio frame */
+
+        /* if only audio stream, then display the audio bars (better
+           than nothing, just to test the implementation */
+
+        /* display picture */
+        if (!display_disable)
+            video_display(is);
+    }
+    if (show_status) {
+        static int64_t last_time;
+        int64_t cur_time;
+        int aqsize, vqsize, sqsize;
+        double av_diff;
+
+        cur_time = av_gettime();
+        if (!last_time || (cur_time - last_time) >= 30000) {
+            aqsize = 0;
+            vqsize = 0;
+            sqsize = 0;
+            if (is->audio_st)
+                aqsize = is->audioq.size;
+            if (is->video_st)
+                vqsize = is->videoq.size;
+            if (is->subtitle_st)
+                sqsize = is->subtitleq.size;
+            av_diff = 0;
+            if (is->audio_st && is->video_st)
+                av_diff = get_audio_clock(is) - get_video_clock(is);
+            printf("%7.2f A-V:%7.3f s:%3.1f aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64"   \r",
+                   get_master_clock(is), av_diff, FFMAX(is->skip_frames-1, 0), aqsize / 1024, vqsize / 1024, sqsize, is->pts_ctx.num_faulty_dts, is->pts_ctx.num_faulty_pts);
+            fflush(stdout);
+            last_time = cur_time;
+        }
+    }
+}
+
+static void stream_close(VideoState *is)
+{
+    VideoPicture *vp;
+    int i;
+    /* XXX: use a special url_shutdown call to abort parse cleanly */
+    is->abort_request = 1;
+    SDL_WaitThread(is->parse_tid, NULL);
+    SDL_WaitThread(is->refresh_tid, NULL);
+
+    /* free all pictures */
+    for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) {
+        vp = &is->pictq[i];
+#if CONFIG_AVFILTER
+        if (vp->picref) {
+            avfilter_unref_buffer(vp->picref);
+            vp->picref = NULL;
+        }
+#endif
+        if (vp->bmp) {
+            SDL_FreeYUVOverlay(vp->bmp);
+            vp->bmp = NULL;
+        }
+    }
+    SDL_DestroyMutex(is->pictq_mutex);
+    SDL_DestroyCond(is->pictq_cond);
+    SDL_DestroyMutex(is->subpq_mutex);
+    SDL_DestroyCond(is->subpq_cond);
+#if !CONFIG_AVFILTER
+    if (is->img_convert_ctx)
+        sws_freeContext(is->img_convert_ctx);
+#endif
+    av_free(is);
+}
+
+static void do_exit(void)
+{
+    if (cur_stream) {
+        stream_close(cur_stream);
+        cur_stream = NULL;
+    }
+    uninit_opts();
+#if CONFIG_AVFILTER
+    avfilter_uninit();
+#endif
+    if (show_status)
+        printf("\n");
+    SDL_Quit();
+    av_log(NULL, AV_LOG_QUIET, "");
+    exit(0);
+}
+
+/* allocate a picture (needs to do that in main thread to avoid
+   potential locking problems */
+static void alloc_picture(void *opaque)
+{
+    VideoState *is = opaque;
+    VideoPicture *vp;
+
+    vp = &is->pictq[is->pictq_windex];
+
+    if (vp->bmp)
+        SDL_FreeYUVOverlay(vp->bmp);
+
+#if CONFIG_AVFILTER
+    if (vp->picref)
+        avfilter_unref_buffer(vp->picref);
+    vp->picref = NULL;
+
+    vp->width   = is->out_video_filter->inputs[0]->w;
+    vp->height  = is->out_video_filter->inputs[0]->h;
+    vp->pix_fmt = is->out_video_filter->inputs[0]->format;
+#else
+    vp->width   = is->video_st->codec->width;
+    vp->height  = is->video_st->codec->height;
+    vp->pix_fmt = is->video_st->codec->pix_fmt;
+#endif
+
+    vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height,
+                                   SDL_YV12_OVERLAY,
+                                   screen);
+    if (!vp->bmp || vp->bmp->pitches[0] < vp->width) {
+        /* SDL allocates a buffer smaller than requested if the video
+         * overlay hardware is unable to support the requested size. */
+        fprintf(stderr, "Error: the video system does not support an image\n"
+                        "size of %dx%d pixels. Try using -lowres or -vf \"scale=w:h\"\n"
+                        "to reduce the image size.\n", vp->width, vp->height );
+        do_exit();
+    }
+
+    SDL_LockMutex(is->pictq_mutex);
+    vp->allocated = 1;
+    SDL_CondSignal(is->pictq_cond);
+    SDL_UnlockMutex(is->pictq_mutex);
+}
+
+/**
+ *
+ * @param pts the dts of the pkt / pts of the frame and guessed if not known
+ */
+static int queue_picture(VideoState *is, AVFrame *src_frame, double pts, int64_t pos)
+{
+    VideoPicture *vp;
+#if CONFIG_AVFILTER
+    AVPicture pict_src;
+#else
+    int dst_pix_fmt = PIX_FMT_YUV420P;
+#endif
+    /* wait until we have space to put a new picture */
+    SDL_LockMutex(is->pictq_mutex);
+
+    if(is->pictq_size>=VIDEO_PICTURE_QUEUE_SIZE && !is->refresh)
+        is->skip_frames= FFMAX(1.0 - FRAME_SKIP_FACTOR, is->skip_frames * (1.0-FRAME_SKIP_FACTOR));
+
+    while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
+           !is->videoq.abort_request) {
+        SDL_CondWait(is->pictq_cond, is->pictq_mutex);
+    }
+    SDL_UnlockMutex(is->pictq_mutex);
+
+    if (is->videoq.abort_request)
+        return -1;
+
+    vp = &is->pictq[is->pictq_windex];
+
+    /* alloc or resize hardware picture buffer */
+    if (!vp->bmp ||
+#if CONFIG_AVFILTER
+        vp->width  != is->out_video_filter->inputs[0]->w ||
+        vp->height != is->out_video_filter->inputs[0]->h) {
+#else
+        vp->width != is->video_st->codec->width ||
+        vp->height != is->video_st->codec->height) {
+#endif
+        SDL_Event event;
+
+        vp->allocated = 0;
+
+        /* the allocation must be done in the main thread to avoid
+           locking problems */
+        event.type = FF_ALLOC_EVENT;
+        event.user.data1 = is;
+        SDL_PushEvent(&event);
+
+        /* wait until the picture is allocated */
+        SDL_LockMutex(is->pictq_mutex);
+        while (!vp->allocated && !is->videoq.abort_request) {
+            SDL_CondWait(is->pictq_cond, is->pictq_mutex);
+        }
+        SDL_UnlockMutex(is->pictq_mutex);
+
+        if (is->videoq.abort_request)
+            return -1;
+    }
+
+    /* if the frame is not skipped, then display it */
+    if (vp->bmp) {
+        AVPicture pict;
+#if CONFIG_AVFILTER
+        if(vp->picref)
+            avfilter_unref_buffer(vp->picref);
+        vp->picref = src_frame->opaque;
+#endif
+
+        /* get a pointer on the bitmap */
+        SDL_LockYUVOverlay (vp->bmp);
+
+        memset(&pict,0,sizeof(AVPicture));
+        pict.data[0] = vp->bmp->pixels[0];
+        pict.data[1] = vp->bmp->pixels[2];
+        pict.data[2] = vp->bmp->pixels[1];
+
+        pict.linesize[0] = vp->bmp->pitches[0];
+        pict.linesize[1] = vp->bmp->pitches[2];
+        pict.linesize[2] = vp->bmp->pitches[1];
+
+#if CONFIG_AVFILTER
+        pict_src.data[0] = src_frame->data[0];
+        pict_src.data[1] = src_frame->data[1];
+        pict_src.data[2] = src_frame->data[2];
+
+        pict_src.linesize[0] = src_frame->linesize[0];
+        pict_src.linesize[1] = src_frame->linesize[1];
+        pict_src.linesize[2] = src_frame->linesize[2];
+
+        //FIXME use direct rendering
+        av_picture_copy(&pict, &pict_src,
+                        vp->pix_fmt, vp->width, vp->height);
+#else
+        sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
+        is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
+            vp->width, vp->height, vp->pix_fmt, vp->width, vp->height,
+            dst_pix_fmt, sws_flags, NULL, NULL, NULL);
+        if (is->img_convert_ctx == NULL) {
+            fprintf(stderr, "Cannot initialize the conversion context\n");
+            exit(1);
+        }
+        sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
+                  0, vp->height, pict.data, pict.linesize);
+#endif
+        /* update the bitmap content */
+        SDL_UnlockYUVOverlay(vp->bmp);
+
+        vp->pts = pts;
+        vp->pos = pos;
+
+        /* now we can update the picture count */
+        if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
+            is->pictq_windex = 0;
+        SDL_LockMutex(is->pictq_mutex);
+        vp->target_clock= compute_target_time(vp->pts, is);
+
+        is->pictq_size++;
+        SDL_UnlockMutex(is->pictq_mutex);
+    }
+    return 0;
+}
+
+/**
+ * compute the exact PTS for the picture if it is omitted in the stream
+ * @param pts1 the dts of the pkt / pts of the frame
+ */
+static int output_picture2(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos)
+{
+    double frame_delay, pts;
+
+    pts = pts1;
+
+    if (pts != 0) {
+        /* update video clock with pts, if present */
+        is->video_clock = pts;
+    } else {
+        pts = is->video_clock;
+    }
+    /* update video clock for next frame */
+    frame_delay = av_q2d(is->video_st->codec->time_base);
+    /* for MPEG2, the frame can be repeated, so we update the
+       clock accordingly */
+    frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
+    is->video_clock += frame_delay;
+
+    return queue_picture(is, src_frame, pts, pos);
+}
+
+static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt)
+{
+    int got_picture, i;
+
+    if (packet_queue_get(&is->videoq, pkt, 1) < 0)
+        return -1;
+
+    if (pkt->data == flush_pkt.data) {
+        avcodec_flush_buffers(is->video_st->codec);
+
+        SDL_LockMutex(is->pictq_mutex);
+        //Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
+        for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
+            is->pictq[i].target_clock= 0;
+        }
+        while (is->pictq_size && !is->videoq.abort_request) {
+            SDL_CondWait(is->pictq_cond, is->pictq_mutex);
+        }
+        is->video_current_pos = -1;
+        SDL_UnlockMutex(is->pictq_mutex);
+
+        init_pts_correction(&is->pts_ctx);
+        is->frame_last_pts = AV_NOPTS_VALUE;
+        is->frame_last_delay = 0;
+        is->frame_timer = (double)av_gettime() / 1000000.0;
+        is->skip_frames = 1;
+        is->skip_frames_index = 0;
+        return 0;
+    }
+
+    avcodec_decode_video2(is->video_st->codec, frame, &got_picture, pkt);
+
+    if (got_picture) {
+        if (decoder_reorder_pts == -1) {
+            *pts = guess_correct_pts(&is->pts_ctx, frame->pkt_pts, frame->pkt_dts);
+        } else if (decoder_reorder_pts) {
+            *pts = frame->pkt_pts;
+        } else {
+            *pts = frame->pkt_dts;
+        }
+
+        if (*pts == AV_NOPTS_VALUE) {
+            *pts = 0;
+        }
+
+        is->skip_frames_index += 1;
+        if(is->skip_frames_index >= is->skip_frames){
+            is->skip_frames_index -= FFMAX(is->skip_frames, 1.0);
+            return 1;
+        }
+
+    }
+    return 0;
+}
+
+#if CONFIG_AVFILTER
+typedef struct {
+    VideoState *is;
+    AVFrame *frame;
+    int use_dr1;
+} FilterPriv;
+
+static int input_get_buffer(AVCodecContext *codec, AVFrame *pic)
+{
+    AVFilterContext *ctx = codec->opaque;
+    AVFilterBufferRef  *ref;
+    int perms = AV_PERM_WRITE;
+    int i, w, h, stride[4];
+    unsigned edge;
+    int pixel_size;
+
+    if (codec->codec->capabilities & CODEC_CAP_NEG_LINESIZES)
+        perms |= AV_PERM_NEG_LINESIZES;
+
+    if(pic->buffer_hints & FF_BUFFER_HINTS_VALID) {
+        if(pic->buffer_hints & FF_BUFFER_HINTS_READABLE) perms |= AV_PERM_READ;
+        if(pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) perms |= AV_PERM_PRESERVE;
+        if(pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) perms |= AV_PERM_REUSE2;
+    }
+    if(pic->reference) perms |= AV_PERM_READ | AV_PERM_PRESERVE;
+
+    w = codec->width;
+    h = codec->height;
+    avcodec_align_dimensions2(codec, &w, &h, stride);
+    edge = codec->flags & CODEC_FLAG_EMU_EDGE ? 0 : avcodec_get_edge_width();
+    w += edge << 1;
+    h += edge << 1;
+
+    if(!(ref = avfilter_get_video_buffer(ctx->outputs[0], perms, w, h)))
+        return -1;
+
+    pixel_size = av_pix_fmt_descriptors[ref->format].comp[0].step_minus1+1;
+    ref->video->w = codec->width;
+    ref->video->h = codec->height;
+    for(i = 0; i < 4; i ++) {
+        unsigned hshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_w : 0;
+        unsigned vshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_h : 0;
+
+        if (ref->data[i]) {
+            ref->data[i]    += ((edge * pixel_size) >> hshift) + ((edge * ref->linesize[i]) >> vshift);
+        }
+        pic->data[i]     = ref->data[i];
+        pic->linesize[i] = ref->linesize[i];
+    }
+    pic->opaque = ref;
+    pic->age    = INT_MAX;
+    pic->type   = FF_BUFFER_TYPE_USER;
+    pic->reordered_opaque = codec->reordered_opaque;
+    if(codec->pkt) pic->pkt_pts = codec->pkt->pts;
+    else           pic->pkt_pts = AV_NOPTS_VALUE;
+    return 0;
+}
+
+static void input_release_buffer(AVCodecContext *codec, AVFrame *pic)
+{
+    memset(pic->data, 0, sizeof(pic->data));
+    avfilter_unref_buffer(pic->opaque);
+}
+
+static int input_reget_buffer(AVCodecContext *codec, AVFrame *pic)
+{
+    AVFilterBufferRef *ref = pic->opaque;
+
+    if (pic->data[0] == NULL) {
+        pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
+        return codec->get_buffer(codec, pic);
+    }
+
+    if ((codec->width != ref->video->w) || (codec->height != ref->video->h) ||
+        (codec->pix_fmt != ref->format)) {
+        av_log(codec, AV_LOG_ERROR, "Picture properties changed.\n");
+        return -1;
+    }
+
+    pic->reordered_opaque = codec->reordered_opaque;
+    if(codec->pkt) pic->pkt_pts = codec->pkt->pts;
+    else           pic->pkt_pts = AV_NOPTS_VALUE;
+    return 0;
+}
+
+static int input_init(AVFilterContext *ctx, const char *args, void *opaque)
+{
+    FilterPriv *priv = ctx->priv;
+    AVCodecContext *codec;
+    if(!opaque) return -1;
+
+    priv->is = opaque;
+    codec    = priv->is->video_st->codec;
+    codec->opaque = ctx;
+    if(codec->codec->capabilities & CODEC_CAP_DR1) {
+        priv->use_dr1 = 1;
+        codec->get_buffer     = input_get_buffer;
+        codec->release_buffer = input_release_buffer;
+        codec->reget_buffer   = input_reget_buffer;
+        codec->thread_safe_callbacks = 1;
+    }
+
+    priv->frame = avcodec_alloc_frame();
+
+    return 0;
+}
+
+static void input_uninit(AVFilterContext *ctx)
+{
+    FilterPriv *priv = ctx->priv;
+    av_free(priv->frame);
+}
+
+static int input_request_frame(AVFilterLink *link)
+{
+    FilterPriv *priv = link->src->priv;
+    AVFilterBufferRef *picref;
+    int64_t pts = 0;
+    AVPacket pkt;
+    int ret;
+
+    while (!(ret = get_video_frame(priv->is, priv->frame, &pts, &pkt)))
+        av_free_packet(&pkt);
+    if (ret < 0)
+        return -1;
+
+    if(priv->use_dr1) {
+        picref = avfilter_ref_buffer(priv->frame->opaque, ~0);
+    } else {
+        picref = avfilter_get_video_buffer(link, AV_PERM_WRITE, link->w, link->h);
+        av_image_copy(picref->data, picref->linesize,
+                      priv->frame->data, priv->frame->linesize,
+                      picref->format, link->w, link->h);
+    }
+    av_free_packet(&pkt);
+
+    picref->pts = pts;
+    picref->pos = pkt.pos;
+    picref->video->pixel_aspect = priv->is->video_st->codec->sample_aspect_ratio;
+    avfilter_start_frame(link, picref);
+    avfilter_draw_slice(link, 0, link->h, 1);
+    avfilter_end_frame(link);
+
+    return 0;
+}
+
+static int input_query_formats(AVFilterContext *ctx)
+{
+    FilterPriv *priv = ctx->priv;
+    enum PixelFormat pix_fmts[] = {
+        priv->is->video_st->codec->pix_fmt, PIX_FMT_NONE
+    };
+
+    avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
+    return 0;
+}
+
+static int input_config_props(AVFilterLink *link)
+{
+    FilterPriv *priv  = link->src->priv;
+    AVCodecContext *c = priv->is->video_st->codec;
+
+    link->w = c->width;
+    link->h = c->height;
+    link->time_base = priv->is->video_st->time_base;
+
+    return 0;
+}
+
+static AVFilter input_filter =
+{
+    .name      = "avplay_input",
+
+    .priv_size = sizeof(FilterPriv),
+
+    .init      = input_init,
+    .uninit    = input_uninit,
+
+    .query_formats = input_query_formats,
+
+    .inputs    = (AVFilterPad[]) {{ .name = NULL }},
+    .outputs   = (AVFilterPad[]) {{ .name = "default",
+                                    .type = AVMEDIA_TYPE_VIDEO,
+                                    .request_frame = input_request_frame,
+                                    .config_props  = input_config_props, },
+                                  { .name = NULL }},
+};
+
+static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const char *vfilters)
+{
+    char sws_flags_str[128];
+    int ret;
+    FFSinkContext ffsink_ctx = { .pix_fmt = PIX_FMT_YUV420P };
+    AVFilterContext *filt_src = NULL, *filt_out = NULL;
+    snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%d", sws_flags);
+    graph->scale_sws_opts = av_strdup(sws_flags_str);
+
+    if ((ret = avfilter_graph_create_filter(&filt_src, &input_filter, "src",
+                                            NULL, is, graph)) < 0)
+        return ret;
+    if ((ret = avfilter_graph_create_filter(&filt_out, &ffsink, "out",
+                                            NULL, &ffsink_ctx, graph)) < 0)
+        return ret;
+
+    if(vfilters) {
+        AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
+        AVFilterInOut *inputs  = av_malloc(sizeof(AVFilterInOut));
+
+        outputs->name    = av_strdup("in");
+        outputs->filter_ctx = filt_src;
+        outputs->pad_idx = 0;
+        outputs->next    = NULL;
+
+        inputs->name    = av_strdup("out");
+        inputs->filter_ctx = filt_out;
+        inputs->pad_idx = 0;
+        inputs->next    = NULL;
+
+        if ((ret = avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL)) < 0)
+            return ret;
+        av_freep(&vfilters);
+    } else {
+        if ((ret = avfilter_link(filt_src, 0, filt_out, 0)) < 0)
+            return ret;
+    }
+
+    if ((ret = avfilter_graph_config(graph, NULL)) < 0)
+        return ret;
+
+    is->out_video_filter = filt_out;
+
+    return ret;
+}
+
+#endif  /* CONFIG_AVFILTER */
+
+static int video_thread(void *arg)
+{
+    VideoState *is = arg;
+    AVFrame *frame= avcodec_alloc_frame();
+    int64_t pts_int;
+    double pts;
+    int ret;
+
+#if CONFIG_AVFILTER
+    AVFilterGraph *graph = avfilter_graph_alloc();
+    AVFilterContext *filt_out = NULL;
+    int64_t pos;
+
+    if ((ret = configure_video_filters(graph, is, vfilters)) < 0)
+        goto the_end;
+    filt_out = is->out_video_filter;
+#endif
+
+    for(;;) {
+#if !CONFIG_AVFILTER
+        AVPacket pkt;
+#else
+        AVFilterBufferRef *picref;
+        AVRational tb;
+#endif
+        while (is->paused && !is->videoq.abort_request)
+            SDL_Delay(10);
+#if CONFIG_AVFILTER
+        ret = get_filtered_video_frame(filt_out, frame, &picref, &tb);
+        if (picref) {
+            pts_int = picref->pts;
+            pos     = picref->pos;
+            frame->opaque = picref;
+        }
+
+        if (av_cmp_q(tb, is->video_st->time_base)) {
+            av_unused int64_t pts1 = pts_int;
+            pts_int = av_rescale_q(pts_int, tb, is->video_st->time_base);
+            av_dlog(NULL, "video_thread(): "
+                    "tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n",
+                    tb.num, tb.den, pts1,
+                    is->video_st->time_base.num, is->video_st->time_base.den, pts_int);
+        }
+#else
+        ret = get_video_frame(is, frame, &pts_int, &pkt);
+#endif
+
+        if (ret < 0) goto the_end;
+
+        if (!ret)
+            continue;
+
+        pts = pts_int*av_q2d(is->video_st->time_base);
+
+#if CONFIG_AVFILTER
+        ret = output_picture2(is, frame, pts, pos);
+#else
+        ret = output_picture2(is, frame, pts,  pkt.pos);
+        av_free_packet(&pkt);
+#endif
+        if (ret < 0)
+            goto the_end;
+
+        if (step)
+            if (cur_stream)
+                stream_pause(cur_stream);
+    }
+ the_end:
+#if CONFIG_AVFILTER
+    avfilter_graph_free(&graph);
+#endif
+    av_free(frame);
+    return 0;
+}
+
+static int subtitle_thread(void *arg)
+{
+    VideoState *is = arg;
+    SubPicture *sp;
+    AVPacket pkt1, *pkt = &pkt1;
+    int got_subtitle;
+    double pts;
+    int i, j;
+    int r, g, b, y, u, v, a;
+
+    for(;;) {
+        while (is->paused && !is->subtitleq.abort_request) {
+            SDL_Delay(10);
+        }
+        if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
+            break;
+
+        if(pkt->data == flush_pkt.data){
+            avcodec_flush_buffers(is->subtitle_st->codec);
+            continue;
+        }
+        SDL_LockMutex(is->subpq_mutex);
+        while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
+               !is->subtitleq.abort_request) {
+            SDL_CondWait(is->subpq_cond, is->subpq_mutex);
+        }
+        SDL_UnlockMutex(is->subpq_mutex);
+
+        if (is->subtitleq.abort_request)
+            return 0;
+
+        sp = &is->subpq[is->subpq_windex];
+
+       /* NOTE: ipts is the PTS of the _first_ picture beginning in
+           this packet, if any */
+        pts = 0;
+        if (pkt->pts != AV_NOPTS_VALUE)
+            pts = av_q2d(is->subtitle_st->time_base)*pkt->pts;
+
+        avcodec_decode_subtitle2(is->subtitle_st->codec, &sp->sub,
+                                 &got_subtitle, pkt);
+
+        if (got_subtitle && sp->sub.format == 0) {
+            sp->pts = pts;
+
+            for (i = 0; i < sp->sub.num_rects; i++)
+            {
+                for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
+                {
+                    RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
+                    y = RGB_TO_Y_CCIR(r, g, b);
+                    u = RGB_TO_U_CCIR(r, g, b, 0);
+                    v = RGB_TO_V_CCIR(r, g, b, 0);
+                    YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
+                }
+            }
+
+            /* now we can update the picture count */
+            if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
+                is->subpq_windex = 0;
+            SDL_LockMutex(is->subpq_mutex);
+            is->subpq_size++;
+            SDL_UnlockMutex(is->subpq_mutex);
+        }
+        av_free_packet(pkt);
+    }
+    return 0;
+}
+
+/* copy samples for viewing in editor window */
+static void update_sample_display(VideoState *is, short *samples, int samples_size)
+{
+    int size, len;
+
+    size = samples_size / sizeof(short);
+    while (size > 0) {
+        len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
+        if (len > size)
+            len = size;
+        memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
+        samples += len;
+        is->sample_array_index += len;
+        if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
+            is->sample_array_index = 0;
+        size -= len;
+    }
+}
+
+/* return the new audio buffer size (samples can be added or deleted
+   to get better sync if video or external master clock) */
+static int synchronize_audio(VideoState *is, short *samples,
+                             int samples_size1, double pts)
+{
+    int n, samples_size;
+    double ref_clock;
+
+    n = 2 * is->audio_st->codec->channels;
+    samples_size = samples_size1;
+
+    /* if not master, then we try to remove or add samples to correct the clock */
+    if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
+         is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
+        double diff, avg_diff;
+        int wanted_size, min_size, max_size, nb_samples;
+
+        ref_clock = get_master_clock(is);
+        diff = get_audio_clock(is) - ref_clock;
+
+        if (diff < AV_NOSYNC_THRESHOLD) {
+            is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
+            if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
+                /* not enough measures to have a correct estimate */
+                is->audio_diff_avg_count++;
+            } else {
+                /* estimate the A-V difference */
+                avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
+
+                if (fabs(avg_diff) >= is->audio_diff_threshold) {
+                    wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
+                    nb_samples = samples_size / n;
+
+                    min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
+                    max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
+                    if (wanted_size < min_size)
+                        wanted_size = min_size;
+                    else if (wanted_size > max_size)
+                        wanted_size = max_size;
+
+                    /* add or remove samples to correction the synchro */
+                    if (wanted_size < samples_size) {
+                        /* remove samples */
+                        samples_size = wanted_size;
+                    } else if (wanted_size > samples_size) {
+                        uint8_t *samples_end, *q;
+                        int nb;
+
+                        /* add samples */
+                        nb = (samples_size - wanted_size);
+                        samples_end = (uint8_t *)samples + samples_size - n;
+                        q = samples_end + n;
+                        while (nb > 0) {
+                            memcpy(q, samples_end, n);
+                            q += n;
+                            nb -= n;
+                        }
+                        samples_size = wanted_size;
+                    }
+                }
+                av_dlog(NULL, "diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
+                        diff, avg_diff, samples_size - samples_size1,
+                        is->audio_clock, is->video_clock, is->audio_diff_threshold);
+            }
+        } else {
+            /* too big difference : may be initial PTS errors, so
+               reset A-V filter */
+            is->audio_diff_avg_count = 0;
+            is->audio_diff_cum = 0;
+        }
+    }
+
+    return samples_size;
+}
+
+/* decode one audio frame and returns its uncompressed size */
+static int audio_decode_frame(VideoState *is, double *pts_ptr)
+{
+    AVPacket *pkt_temp = &is->audio_pkt_temp;
+    AVPacket *pkt = &is->audio_pkt;
+    AVCodecContext *dec= is->audio_st->codec;
+    int n, len1, data_size;
+    double pts;
+
+    for(;;) {
+        /* NOTE: the audio packet can contain several frames */
+        while (pkt_temp->size > 0) {
+            data_size = sizeof(is->audio_buf1);
+            len1 = avcodec_decode_audio3(dec,
+                                        (int16_t *)is->audio_buf1, &data_size,
+                                        pkt_temp);
+            if (len1 < 0) {
+                /* if error, we skip the frame */
+                pkt_temp->size = 0;
+                break;
+            }
+
+            pkt_temp->data += len1;
+            pkt_temp->size -= len1;
+            if (data_size <= 0)
+                continue;
+
+            if (dec->sample_fmt != is->audio_src_fmt) {
+                if (is->reformat_ctx)
+                    av_audio_convert_free(is->reformat_ctx);
+                is->reformat_ctx= av_audio_convert_alloc(AV_SAMPLE_FMT_S16, 1,
+                                                         dec->sample_fmt, 1, NULL, 0);
+                if (!is->reformat_ctx) {
+                    fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
+                        av_get_sample_fmt_name(dec->sample_fmt),
+                        av_get_sample_fmt_name(AV_SAMPLE_FMT_S16));
+                        break;
+                }
+                is->audio_src_fmt= dec->sample_fmt;
+            }
+
+            if (is->reformat_ctx) {
+                const void *ibuf[6]= {is->audio_buf1};
+                void *obuf[6]= {is->audio_buf2};
+                int istride[6]= {av_get_bytes_per_sample(dec->sample_fmt)};
+                int ostride[6]= {2};
+                int len= data_size/istride[0];
+                if (av_audio_convert(is->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
+                    printf("av_audio_convert() failed\n");
+                    break;
+                }
+                is->audio_buf= is->audio_buf2;
+                /* FIXME: existing code assume that data_size equals framesize*channels*2
+                          remove this legacy cruft */
+                data_size= len*2;
+            }else{
+                is->audio_buf= is->audio_buf1;
+            }
+
+            /* if no pts, then compute it */
+            pts = is->audio_clock;
+            *pts_ptr = pts;
+            n = 2 * dec->channels;
+            is->audio_clock += (double)data_size /
+                (double)(n * dec->sample_rate);
+#ifdef DEBUG
+            {
+                static double last_clock;
+                printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
+                       is->audio_clock - last_clock,
+                       is->audio_clock, pts);
+                last_clock = is->audio_clock;
+            }
+#endif
+            return data_size;
+        }
+
+        /* free the current packet */
+        if (pkt->data)
+            av_free_packet(pkt);
+
+        if (is->paused || is->audioq.abort_request) {
+            return -1;
+        }
+
+        /* read next packet */
+        if (packet_queue_get(&is->audioq, pkt, 1) < 0)
+            return -1;
+        if(pkt->data == flush_pkt.data){
+            avcodec_flush_buffers(dec);
+            continue;
+        }
+
+        pkt_temp->data = pkt->data;
+        pkt_temp->size = pkt->size;
+
+        /* if update the audio clock with the pts */
+        if (pkt->pts != AV_NOPTS_VALUE) {
+            is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
+        }
+    }
+}
+
+/* prepare a new audio buffer */
+static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
+{
+    VideoState *is = opaque;
+    int audio_size, len1;
+    double pts;
+
+    audio_callback_time = av_gettime();
+
+    while (len > 0) {
+        if (is->audio_buf_index >= is->audio_buf_size) {
+           audio_size = audio_decode_frame(is, &pts);
+           if (audio_size < 0) {
+                /* if error, just output silence */
+               is->audio_buf = is->audio_buf1;
+               is->audio_buf_size = 1024;
+               memset(is->audio_buf, 0, is->audio_buf_size);
+           } else {
+               if (is->show_audio)
+                   update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
+               audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
+                                              pts);
+               is->audio_buf_size = audio_size;
+           }
+           is->audio_buf_index = 0;
+        }
+        len1 = is->audio_buf_size - is->audio_buf_index;
+        if (len1 > len)
+            len1 = len;
+        memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
+        len -= len1;
+        stream += len1;
+        is->audio_buf_index += len1;
+    }
+}
+
+/* open a given stream. Return 0 if OK */
+static int stream_component_open(VideoState *is, int stream_index)
+{
+    AVFormatContext *ic = is->ic;
+    AVCodecContext *avctx;
+    AVCodec *codec;
+    SDL_AudioSpec wanted_spec, spec;
+    AVDictionary *opts;
+    AVDictionaryEntry *t = NULL;
+
+    if (stream_index < 0 || stream_index >= ic->nb_streams)
+        return -1;
+    avctx = ic->streams[stream_index]->codec;
+
+    opts = filter_codec_opts(codec_opts, avctx->codec_id, 0);
+
+    /* prepare audio output */
+    if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
+        if (avctx->channels > 0) {
+            avctx->request_channels = FFMIN(2, avctx->channels);
+        } else {
+            avctx->request_channels = 2;
+        }
+    }
+
+    codec = avcodec_find_decoder(avctx->codec_id);
+    avctx->debug_mv = debug_mv;
+    avctx->debug = debug;
+    avctx->workaround_bugs = workaround_bugs;
+    avctx->lowres = lowres;
+    if(lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;
+    avctx->idct_algo= idct;
+    if(fast) avctx->flags2 |= CODEC_FLAG2_FAST;
+    avctx->skip_frame= skip_frame;
+    avctx->skip_idct= skip_idct;
+    avctx->skip_loop_filter= skip_loop_filter;
+    avctx->error_recognition= error_recognition;
+    avctx->error_concealment= error_concealment;
+    avctx->thread_count= thread_count;
+
+    if (!codec ||
+        avcodec_open2(avctx, codec, &opts) < 0)
+        return -1;
+    if ((t = av_dict_get(opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
+        av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
+        return AVERROR_OPTION_NOT_FOUND;
+    }
+
+    /* prepare audio output */
+    if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
+        wanted_spec.freq = avctx->sample_rate;
+        wanted_spec.format = AUDIO_S16SYS;
+        wanted_spec.channels = avctx->channels;
+        wanted_spec.silence = 0;
+        wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
+        wanted_spec.callback = sdl_audio_callback;
+        wanted_spec.userdata = is;
+        if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
+            fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
+            return -1;
+        }
+        is->audio_hw_buf_size = spec.size;
+        is->audio_src_fmt= AV_SAMPLE_FMT_S16;
+    }
+
+    ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
+    switch(avctx->codec_type) {
+    case AVMEDIA_TYPE_AUDIO:
+        is->audio_stream = stream_index;
+        is->audio_st = ic->streams[stream_index];
+        is->audio_buf_size = 0;
+        is->audio_buf_index = 0;
+
+        /* init averaging filter */
+        is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
+        is->audio_diff_avg_count = 0;
+        /* since we do not have a precise anough audio fifo fullness,
+           we correct audio sync only if larger than this threshold */
+        is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / avctx->sample_rate;
+
+        memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
+        packet_queue_init(&is->audioq);
+        SDL_PauseAudio(0);
+        break;
+    case AVMEDIA_TYPE_VIDEO:
+        is->video_stream = stream_index;
+        is->video_st = ic->streams[stream_index];
+
+        packet_queue_init(&is->videoq);
+        is->video_tid = SDL_CreateThread(video_thread, is);
+        break;
+    case AVMEDIA_TYPE_SUBTITLE:
+        is->subtitle_stream = stream_index;
+        is->subtitle_st = ic->streams[stream_index];
+        packet_queue_init(&is->subtitleq);
+
+        is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
+        break;
+    default:
+        break;
+    }
+    return 0;
+}
+
+static void stream_component_close(VideoState *is, int stream_index)
+{
+    AVFormatContext *ic = is->ic;
+    AVCodecContext *avctx;
+
+    if (stream_index < 0 || stream_index >= ic->nb_streams)
+        return;
+    avctx = ic->streams[stream_index]->codec;
+
+    switch(avctx->codec_type) {
+    case AVMEDIA_TYPE_AUDIO:
+        packet_queue_abort(&is->audioq);
+
+        SDL_CloseAudio();
+
+        packet_queue_end(&is->audioq);
+        if (is->reformat_ctx)
+            av_audio_convert_free(is->reformat_ctx);
+        is->reformat_ctx = NULL;
+        break;
+    case AVMEDIA_TYPE_VIDEO:
+        packet_queue_abort(&is->videoq);
+
+        /* note: we also signal this mutex to make sure we deblock the
+           video thread in all cases */
+        SDL_LockMutex(is->pictq_mutex);
+        SDL_CondSignal(is->pictq_cond);
+        SDL_UnlockMutex(is->pictq_mutex);
+
+        SDL_WaitThread(is->video_tid, NULL);
+
+        packet_queue_end(&is->videoq);
+        break;
+    case AVMEDIA_TYPE_SUBTITLE:
+        packet_queue_abort(&is->subtitleq);
+
+        /* note: we also signal this mutex to make sure we deblock the
+           video thread in all cases */
+        SDL_LockMutex(is->subpq_mutex);
+        is->subtitle_stream_changed = 1;
+
+        SDL_CondSignal(is->subpq_cond);
+        SDL_UnlockMutex(is->subpq_mutex);
+
+        SDL_WaitThread(is->subtitle_tid, NULL);
+
+        packet_queue_end(&is->subtitleq);
+        break;
+    default:
+        break;
+    }
+
+    ic->streams[stream_index]->discard = AVDISCARD_ALL;
+    avcodec_close(avctx);
+    switch(avctx->codec_type) {
+    case AVMEDIA_TYPE_AUDIO:
+        is->audio_st = NULL;
+        is->audio_stream = -1;
+        break;
+    case AVMEDIA_TYPE_VIDEO:
+        is->video_st = NULL;
+        is->video_stream = -1;
+        break;
+    case AVMEDIA_TYPE_SUBTITLE:
+        is->subtitle_st = NULL;
+        is->subtitle_stream = -1;
+        break;
+    default:
+        break;
+    }
+}
+
+/* since we have only one decoding thread, we can use a global
+   variable instead of a thread local variable */
+static VideoState *global_video_state;
+
+static int decode_interrupt_cb(void)
+{
+    return (global_video_state && global_video_state->abort_request);
+}
+
+/* this thread gets the stream from the disk or the network */
+static int decode_thread(void *arg)
+{
+    VideoState *is = arg;
+    AVFormatContext *ic = NULL;
+    int err, i, ret;
+    int st_index[AVMEDIA_TYPE_NB];
+    AVPacket pkt1, *pkt = &pkt1;
+    int eof=0;
+    int pkt_in_play_range = 0;
+    AVDictionaryEntry *t;
+    AVDictionary **opts;
+    int orig_nb_streams;
+
+    memset(st_index, -1, sizeof(st_index));
+    is->video_stream = -1;
+    is->audio_stream = -1;
+    is->subtitle_stream = -1;
+
+    global_video_state = is;
+    avio_set_interrupt_cb(decode_interrupt_cb);
+
+    err = avformat_open_input(&ic, is->filename, is->iformat, &format_opts);
+    if (err < 0) {
+        print_error(is->filename, err);
+        ret = -1;
+        goto fail;
+    }
+    if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
+        av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
+        ret = AVERROR_OPTION_NOT_FOUND;
+        goto fail;
+    }
+    is->ic = ic;
+
+    if(genpts)
+        ic->flags |= AVFMT_FLAG_GENPTS;
+
+    opts = setup_find_stream_info_opts(ic, codec_opts);
+    orig_nb_streams = ic->nb_streams;
+
+    err = avformat_find_stream_info(ic, opts);
+    if (err < 0) {
+        fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
+        ret = -1;
+        goto fail;
+    }
+    for (i = 0; i < orig_nb_streams; i++)
+        av_dict_free(&opts[i]);
+    av_freep(&opts);
+
+    if(ic->pb)
+        ic->pb->eof_reached= 0; //FIXME hack, avplay maybe should not use url_feof() to test for the end
+
+    if(seek_by_bytes<0)
+        seek_by_bytes= !!(ic->iformat->flags & AVFMT_TS_DISCONT);
+
+    /* if seeking requested, we execute it */
+    if (start_time != AV_NOPTS_VALUE) {
+        int64_t timestamp;
+
+        timestamp = start_time;
+        /* add the stream start time */
+        if (ic->start_time != AV_NOPTS_VALUE)
+            timestamp += ic->start_time;
+        ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
+        if (ret < 0) {
+            fprintf(stderr, "%s: could not seek to position %0.3f\n",
+                    is->filename, (double)timestamp / AV_TIME_BASE);
+        }
+    }
+
+    for (i = 0; i < ic->nb_streams; i++)
+        ic->streams[i]->discard = AVDISCARD_ALL;
+    if (!video_disable)
+        st_index[AVMEDIA_TYPE_VIDEO] =
+            av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO,
+                                wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
+    if (!audio_disable)
+        st_index[AVMEDIA_TYPE_AUDIO] =
+            av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO,
+                                wanted_stream[AVMEDIA_TYPE_AUDIO],
+                                st_index[AVMEDIA_TYPE_VIDEO],
+                                NULL, 0);
+    if (!video_disable)
+        st_index[AVMEDIA_TYPE_SUBTITLE] =
+            av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE,
+                                wanted_stream[AVMEDIA_TYPE_SUBTITLE],
+                                (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ?
+                                 st_index[AVMEDIA_TYPE_AUDIO] :
+                                 st_index[AVMEDIA_TYPE_VIDEO]),
+                                NULL, 0);
+    if (show_status) {
+        av_dump_format(ic, 0, is->filename, 0);
+    }
+
+    /* open the streams */
+    if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
+        stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
+    }
+
+    ret=-1;
+    if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
+        ret= stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
+    }
+    is->refresh_tid = SDL_CreateThread(refresh_thread, is);
+    if(ret<0) {
+        if (!display_disable)
+            is->show_audio = 2;
+    }
+
+    if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
+        stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
+    }
+
+    if (is->video_stream < 0 && is->audio_stream < 0) {
+        fprintf(stderr, "%s: could not open codecs\n", is->filename);
+        ret = -1;
+        goto fail;
+    }
+
+    for(;;) {
+        if (is->abort_request)
+            break;
+        if (is->paused != is->last_paused) {
+            is->last_paused = is->paused;
+            if (is->paused)
+                is->read_pause_return= av_read_pause(ic);
+            else
+                av_read_play(ic);
+        }
+#if CONFIG_RTSP_DEMUXER
+        if (is->paused && !strcmp(ic->iformat->name, "rtsp")) {
+            /* wait 10 ms to avoid trying to get another packet */
+            /* XXX: horrible */
+            SDL_Delay(10);
+            continue;
+        }
+#endif
+        if (is->seek_req) {
+            int64_t seek_target= is->seek_pos;
+            int64_t seek_min= is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
+            int64_t seek_max= is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
+//FIXME the +-2 is due to rounding being not done in the correct direction in generation
+//      of the seek_pos/seek_rel variables
+
+            ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
+            if (ret < 0) {
+                fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
+            }else{
+                if (is->audio_stream >= 0) {
+                    packet_queue_flush(&is->audioq);
+                    packet_queue_put(&is->audioq, &flush_pkt);
+                }
+                if (is->subtitle_stream >= 0) {
+                    packet_queue_flush(&is->subtitleq);
+                    packet_queue_put(&is->subtitleq, &flush_pkt);
+                }
+                if (is->video_stream >= 0) {
+                    packet_queue_flush(&is->videoq);
+                    packet_queue_put(&is->videoq, &flush_pkt);
+                }
+            }
+            is->seek_req = 0;
+            eof= 0;
+        }
+
+        /* if the queue are full, no need to read more */
+        if (   is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
+            || (   (is->audioq   .size  > MIN_AUDIOQ_SIZE || is->audio_stream<0)
+                && (is->videoq   .nb_packets > MIN_FRAMES || is->video_stream<0)
+                && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream<0))) {
+            /* wait 10 ms */
+            SDL_Delay(10);
+            continue;
+        }
+        if(eof) {
+            if(is->video_stream >= 0){
+                av_init_packet(pkt);
+                pkt->data=NULL;
+                pkt->size=0;
+                pkt->stream_index= is->video_stream;
+                packet_queue_put(&is->videoq, pkt);
+            }
+            SDL_Delay(10);
+            if(is->audioq.size + is->videoq.size + is->subtitleq.size ==0){
+                if(loop!=1 && (!loop || --loop)){
+                    stream_seek(cur_stream, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
+                }else if(autoexit){
+                    ret=AVERROR_EOF;
+                    goto fail;
+                }
+            }
+            continue;
+        }
+        ret = av_read_frame(ic, pkt);
+        if (ret < 0) {
+            if (ret == AVERROR_EOF || (ic->pb && ic->pb->eof_reached))
+                eof=1;
+            if (ic->pb && ic->pb->error)
+                break;
+            SDL_Delay(100); /* wait for user event */
+            continue;
+        }
+        /* check if packet is in play range specified by user, then queue, otherwise discard */
+        pkt_in_play_range = duration == AV_NOPTS_VALUE ||
+                (pkt->pts - ic->streams[pkt->stream_index]->start_time) *
+                av_q2d(ic->streams[pkt->stream_index]->time_base) -
+                (double)(start_time != AV_NOPTS_VALUE ? start_time : 0)/1000000
+                <= ((double)duration/1000000);
+        if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
+            packet_queue_put(&is->audioq, pkt);
+        } else if (pkt->stream_index == is->video_stream && pkt_in_play_range) {
+            packet_queue_put(&is->videoq, pkt);
+        } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
+            packet_queue_put(&is->subtitleq, pkt);
+        } else {
+            av_free_packet(pkt);
+        }
+    }
+    /* wait until the end */
+    while (!is->abort_request) {
+        SDL_Delay(100);
+    }
+
+    ret = 0;
+ fail:
+    /* disable interrupting */
+    global_video_state = NULL;
+
+    /* close each stream */
+    if (is->audio_stream >= 0)
+        stream_component_close(is, is->audio_stream);
+    if (is->video_stream >= 0)
+        stream_component_close(is, is->video_stream);
+    if (is->subtitle_stream >= 0)
+        stream_component_close(is, is->subtitle_stream);
+    if (is->ic) {
+        av_close_input_file(is->ic);
+        is->ic = NULL; /* safety */
+    }
+    avio_set_interrupt_cb(NULL);
+
+    if (ret != 0) {
+        SDL_Event event;
+
+        event.type = FF_QUIT_EVENT;
+        event.user.data1 = is;
+        SDL_PushEvent(&event);
+    }
+    return 0;
+}
+
+static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
+{
+    VideoState *is;
+
+    is = av_mallocz(sizeof(VideoState));
+    if (!is)
+        return NULL;
+    av_strlcpy(is->filename, filename, sizeof(is->filename));
+    is->iformat = iformat;
+    is->ytop = 0;
+    is->xleft = 0;
+
+    /* start video display */
+    is->pictq_mutex = SDL_CreateMutex();
+    is->pictq_cond = SDL_CreateCond();
+
+    is->subpq_mutex = SDL_CreateMutex();
+    is->subpq_cond = SDL_CreateCond();
+
+    is->av_sync_type = av_sync_type;
+    is->parse_tid = SDL_CreateThread(decode_thread, is);
+    if (!is->parse_tid) {
+        av_free(is);
+        return NULL;
+    }
+    return is;
+}
+
+static void stream_cycle_channel(VideoState *is, int codec_type)
+{
+    AVFormatContext *ic = is->ic;
+    int start_index, stream_index;
+    AVStream *st;
+
+    if (codec_type == AVMEDIA_TYPE_VIDEO)
+        start_index = is->video_stream;
+    else if (codec_type == AVMEDIA_TYPE_AUDIO)
+        start_index = is->audio_stream;
+    else
+        start_index = is->subtitle_stream;
+    if (start_index < (codec_type == AVMEDIA_TYPE_SUBTITLE ? -1 : 0))
+        return;
+    stream_index = start_index;
+    for(;;) {
+        if (++stream_index >= is->ic->nb_streams)
+        {
+            if (codec_type == AVMEDIA_TYPE_SUBTITLE)
+            {
+                stream_index = -1;
+                goto the_end;
+            } else
+                stream_index = 0;
+        }
+        if (stream_index == start_index)
+            return;
+        st = ic->streams[stream_index];
+        if (st->codec->codec_type == codec_type) {
+            /* check that parameters are OK */
+            switch(codec_type) {
+            case AVMEDIA_TYPE_AUDIO:
+                if (st->codec->sample_rate != 0 &&
+                    st->codec->channels != 0)
+                    goto the_end;
+                break;
+            case AVMEDIA_TYPE_VIDEO:
+            case AVMEDIA_TYPE_SUBTITLE:
+                goto the_end;
+            default:
+                break;
+            }
+        }
+    }
+ the_end:
+    stream_component_close(is, start_index);
+    stream_component_open(is, stream_index);
+}
+
+
+static void toggle_full_screen(void)
+{
+    is_full_screen = !is_full_screen;
+    video_open(cur_stream);
+}
+
+static void toggle_pause(void)
+{
+    if (cur_stream)
+        stream_pause(cur_stream);
+    step = 0;
+}
+
+static void step_to_next_frame(void)
+{
+    if (cur_stream) {
+        /* if the stream is paused unpause it, then step */
+        if (cur_stream->paused)
+            stream_pause(cur_stream);
+    }
+    step = 1;
+}
+
+static void toggle_audio_display(void)
+{
+    if (cur_stream) {
+        int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
+        cur_stream->show_audio = (cur_stream->show_audio + 1) % 3;
+        fill_rectangle(screen,
+                    cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height,
+                    bgcolor);
+        SDL_UpdateRect(screen, cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height);
+    }
+}
+
+/* handle an event sent by the GUI */
+static void event_loop(void)
+{
+    SDL_Event event;
+    double incr, pos, frac;
+
+    for(;;) {
+        double x;
+        SDL_WaitEvent(&event);
+        switch(event.type) {
+        case SDL_KEYDOWN:
+            if (exit_on_keydown) {
+                do_exit();
+                break;
+            }
+            switch(event.key.keysym.sym) {
+            case SDLK_ESCAPE:
+            case SDLK_q:
+                do_exit();
+                break;
+            case SDLK_f:
+                toggle_full_screen();
+                break;
+            case SDLK_p:
+            case SDLK_SPACE:
+                toggle_pause();
+                break;
+            case SDLK_s: //S: Step to next frame
+                step_to_next_frame();
+                break;
+            case SDLK_a:
+                if (cur_stream)
+                    stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
+                break;
+            case SDLK_v:
+                if (cur_stream)
+                    stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
+                break;
+            case SDLK_t:
+                if (cur_stream)
+                    stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
+                break;
+            case SDLK_w:
+                toggle_audio_display();
+                break;
+            case SDLK_LEFT:
+                incr = -10.0;
+                goto do_seek;
+            case SDLK_RIGHT:
+                incr = 10.0;
+                goto do_seek;
+            case SDLK_UP:
+                incr = 60.0;
+                goto do_seek;
+            case SDLK_DOWN:
+                incr = -60.0;
+            do_seek:
+                if (cur_stream) {
+                    if (seek_by_bytes) {
+                        if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos>=0){
+                            pos= cur_stream->video_current_pos;
+                        }else if(cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos>=0){
+                            pos= cur_stream->audio_pkt.pos;
+                        }else
+                            pos = avio_tell(cur_stream->ic->pb);
+                        if (cur_stream->ic->bit_rate)
+                            incr *= cur_stream->ic->bit_rate / 8.0;
+                        else
+                            incr *= 180000.0;
+                        pos += incr;
+                        stream_seek(cur_stream, pos, incr, 1);
+                    } else {
+                        pos = get_master_clock(cur_stream);
+                        pos += incr;
+                        stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
+                    }
+                }
+                break;
+            default:
+                break;
+            }
+            break;
+        case SDL_MOUSEBUTTONDOWN:
+            if (exit_on_mousedown) {
+                do_exit();
+                break;
+            }
+        case SDL_MOUSEMOTION:
+            if(event.type ==SDL_MOUSEBUTTONDOWN){
+                x= event.button.x;
+            }else{
+                if(event.motion.state != SDL_PRESSED)
+                    break;
+                x= event.motion.x;
+            }
+            if (cur_stream) {
+                if(seek_by_bytes || cur_stream->ic->duration<=0){
+                    uint64_t size=  avio_size(cur_stream->ic->pb);
+                    stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
+                }else{
+                    int64_t ts;
+                    int ns, hh, mm, ss;
+                    int tns, thh, tmm, tss;
+                    tns = cur_stream->ic->duration/1000000LL;
+                    thh = tns/3600;
+                    tmm = (tns%3600)/60;
+                    tss = (tns%60);
+                    frac = x/cur_stream->width;
+                    ns = frac*tns;
+                    hh = ns/3600;
+                    mm = (ns%3600)/60;
+                    ss = (ns%60);
+                    fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d)       \n", frac*100,
+                            hh, mm, ss, thh, tmm, tss);
+                    ts = frac*cur_stream->ic->duration;
+                    if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
+                        ts += cur_stream->ic->start_time;
+                    stream_seek(cur_stream, ts, 0, 0);
+                }
+            }
+            break;
+        case SDL_VIDEORESIZE:
+            if (cur_stream) {
+                screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
+                                          SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
+                screen_width = cur_stream->width = event.resize.w;
+                screen_height= cur_stream->height= event.resize.h;
+            }
+            break;
+        case SDL_QUIT:
+        case FF_QUIT_EVENT:
+            do_exit();
+            break;
+        case FF_ALLOC_EVENT:
+            video_open(event.user.data1);
+            alloc_picture(event.user.data1);
+            break;
+        case FF_REFRESH_EVENT:
+            video_refresh_timer(event.user.data1);
+            cur_stream->refresh=0;
+            break;
+        default:
+            break;
+        }
+    }
+}
+
+static int opt_frame_size(const char *opt, const char *arg)
+{
+    av_log(NULL, AV_LOG_ERROR,
+           "Option '%s' has been removed, use private format options instead\n", opt);
+    return AVERROR(EINVAL);
+}
+
+static int opt_width(const char *opt, const char *arg)
+{
+    screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
+    return 0;
+}
+
+static int opt_height(const char *opt, const char *arg)
+{
+    screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
+    return 0;
+}
+
+static int opt_format(const char *opt, const char *arg)
+{
+    file_iformat = av_find_input_format(arg);
+    if (!file_iformat) {
+        fprintf(stderr, "Unknown input format: %s\n", arg);
+        return AVERROR(EINVAL);
+    }
+    return 0;
+}
+
+static int opt_frame_pix_fmt(const char *opt, const char *arg)
+{
+    av_log(NULL, AV_LOG_ERROR,
+           "Option '%s' has been removed, use private format options instead\n", opt);
+    return AVERROR(EINVAL);
+}
+
+static int opt_sync(const char *opt, const char *arg)
+{
+    if (!strcmp(arg, "audio"))
+        av_sync_type = AV_SYNC_AUDIO_MASTER;
+    else if (!strcmp(arg, "video"))
+        av_sync_type = AV_SYNC_VIDEO_MASTER;
+    else if (!strcmp(arg, "ext"))
+        av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
+    else {
+        fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
+        exit(1);
+    }
+    return 0;
+}
+
+static int opt_seek(const char *opt, const char *arg)
+{
+    start_time = parse_time_or_die(opt, arg, 1);
+    return 0;
+}
+
+static int opt_duration(const char *opt, const char *arg)
+{
+    duration = parse_time_or_die(opt, arg, 1);
+    return 0;
+}
+
+static int opt_debug(const char *opt, const char *arg)
+{
+    av_log_set_level(99);
+    debug = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
+    return 0;
+}
+
+static int opt_vismv(const char *opt, const char *arg)
+{
+    debug_mv = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
+    return 0;
+}
+
+static int opt_thread_count(const char *opt, const char *arg)
+{
+    thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
+#if !HAVE_THREADS
+    fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
+#endif
+    return 0;
+}
+
+static const OptionDef options[] = {
+#include "cmdutils_common_opts.h"
+    { "x", HAS_ARG, {(void*)opt_width}, "force displayed width", "width" },
+    { "y", HAS_ARG, {(void*)opt_height}, "force displayed height", "height" },
+    { "s", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
+    { "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" },
+    { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
+    { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
+    { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_AUDIO]}, "select desired audio stream", "stream_number" },
+    { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_VIDEO]}, "select desired video stream", "stream_number" },
+    { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_SUBTITLE]}, "select desired subtitle stream", "stream_number" },
+    { "ss", HAS_ARG, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
+    { "t", HAS_ARG, {(void*)&opt_duration}, "play  \"duration\" seconds of audio/video", "duration" },
+    { "bytes", OPT_INT | HAS_ARG, {(void*)&seek_by_bytes}, "seek by bytes 0=off 1=on -1=auto", "val" },
+    { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
+    { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
+    { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_frame_pix_fmt}, "set pixel format", "format" },
+    { "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" },
+    { "debug", HAS_ARG | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" },
+    { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" },
+    { "vismv", HAS_ARG | OPT_EXPERT, {(void*)opt_vismv}, "visualize motion vectors", "" },
+    { "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" },
+    { "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" },
+    { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&decoder_reorder_pts}, "let decoder reorder pts 0=off 1=on -1=auto", ""},
+    { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" },
+    { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" },
+    { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" },
+    { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_idct}, "", "" },
+    { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo",  "algo" },
+    { "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_recognition}, "set error detection threshold (0-4)",  "threshold" },
+    { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options",  "bit_mask" },
+    { "sync", HAS_ARG | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" },
+    { "threads", HAS_ARG | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
+    { "autoexit", OPT_BOOL | OPT_EXPERT, {(void*)&autoexit}, "exit at the end", "" },
+    { "exitonkeydown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_keydown}, "exit on key down", "" },
+    { "exitonmousedown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_mousedown}, "exit on mouse down", "" },
+    { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&loop}, "set number of times the playback shall be looped", "loop count" },
+    { "framedrop", OPT_BOOL | OPT_EXPERT, {(void*)&framedrop}, "drop frames when cpu is too slow", "" },
+    { "window_title", OPT_STRING | HAS_ARG, {(void*)&window_title}, "set window title", "window title" },
+#if CONFIG_AVFILTER
+    { "vf", OPT_STRING | HAS_ARG, {(void*)&vfilters}, "video filters", "filter list" },
+#endif
+    { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, {(void*)&rdftspeed}, "rdft speed", "msecs" },
+    { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
+    { "i", 0, {NULL}, "ffmpeg compatibility dummy option", ""},
+    { NULL, },
+};
+
+static void show_usage(void)
+{
+    printf("Simple media player\n");
+    printf("usage: %s [options] input_file\n", program_name);
+    printf("\n");
+}
+
+static void show_help(void)
+{
+    av_log_set_callback(log_callback_help);
+    show_usage();
+    show_help_options(options, "Main options:\n",
+                      OPT_EXPERT, 0);
+    show_help_options(options, "\nAdvanced options:\n",
+                      OPT_EXPERT, OPT_EXPERT);
+    printf("\n");
+    av_opt_show2(avcodec_opts[0], NULL,
+                 AV_OPT_FLAG_DECODING_PARAM, 0);
+    printf("\n");
+    av_opt_show2(avformat_opts, NULL,
+                 AV_OPT_FLAG_DECODING_PARAM, 0);
+#if !CONFIG_AVFILTER
+    printf("\n");
+    av_opt_show2(sws_opts, NULL,
+                 AV_OPT_FLAG_ENCODING_PARAM, 0);
+#endif
+    printf("\nWhile playing:\n"
+           "q, ESC              quit\n"
+           "f                   toggle full screen\n"
+           "p, SPC              pause\n"
+           "a                   cycle audio channel\n"
+           "v                   cycle video channel\n"
+           "t                   cycle subtitle channel\n"
+           "w                   show audio waves\n"
+           "s                   activate frame-step mode\n"
+           "left/right          seek backward/forward 10 seconds\n"
+           "down/up             seek backward/forward 1 minute\n"
+           "mouse click         seek to percentage in file corresponding to fraction of width\n"
+           );
+}
+
+static void opt_input_file(const char *filename)
+{
+    if (input_filename) {
+        fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
+                filename, input_filename);
+        exit(1);
+    }
+    if (!strcmp(filename, "-"))
+        filename = "pipe:";
+    input_filename = filename;
+}
+
+/* Called from the main */
+int main(int argc, char **argv)
+{
+    int flags;
+
+    av_log_set_flags(AV_LOG_SKIP_REPEATED);
+
+    /* register all codecs, demux and protocols */
+    avcodec_register_all();
+#if CONFIG_AVDEVICE
+    avdevice_register_all();
+#endif
+#if CONFIG_AVFILTER
+    avfilter_register_all();
+#endif
+    av_register_all();
+
+    init_opts();
+
+    show_banner();
+
+    parse_options(argc, argv, options, opt_input_file);
+
+    if (!input_filename) {
+        show_usage();
+        fprintf(stderr, "An input file must be specified\n");
+        fprintf(stderr, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
+        exit(1);
+    }
+
+    if (display_disable) {
+        video_disable = 1;
+    }
+    flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
+#if !defined(__MINGW32__) && !defined(__APPLE__)
+    flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
+#endif
+    if (SDL_Init (flags)) {
+        fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
+        exit(1);
+    }
+
+    if (!display_disable) {
+#if HAVE_SDL_VIDEO_SIZE
+        const SDL_VideoInfo *vi = SDL_GetVideoInfo();
+        fs_screen_width = vi->current_w;
+        fs_screen_height = vi->current_h;
+#endif
+    }
+
+    SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
+    SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
+    SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
+
+    av_init_packet(&flush_pkt);
+    flush_pkt.data= "FLUSH";
+
+    cur_stream = stream_open(input_filename, file_iformat);
+
+    event_loop();
+
+    /* never returns */
+
+    return 0;
+}