Merge commit '246da0b13551b1f80f067e4f258e5bd691f5ab33'

* commit '246da0b13551b1f80f067e4f258e5bd691f5ab33':
  v4l2: avoid pointless indirection.
  vdpau: Add VC-1 decoding via hwaccel infrastructure
  vdpau: Add H.264 decoding via hwaccel infrastructure

Conflicts:
	configure
	libavcodec/Makefile
	libavcodec/version.h
	libavdevice/v4l2.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>

7 files changed, 345 insertions, 22 deletions

diff --git a/configure b/configure
index e5c8b634ad..faa1c59ab2 100755
--- a/configure
+++ b/configure
@@ -1792,6 +1792,7 @@ h264_vda_decoder_select="vda h264_parser h264_decoder"
 h264_vda_hwaccel_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
 h264_vda_hwaccel_select="vda h264_decoder"
 h264_vdpau_decoder_select="vdpau h264_decoder"
+h264_vdpau_hwaccel_select="vdpau h264_decoder"
 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
@@ -1811,10 +1812,12 @@ vc1_dxva2_hwaccel_deps="dxva2api_h"
 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
 vc1_vdpau_decoder_select="vdpau vc1_decoder"
+vc1_vdpau_hwaccel_select="vdpau vc1_decoder"
 wmv3_crystalhd_decoder_select="crystalhd"
 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
+wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
 
 # parsers
 h264_parser_select="error_resilience golomb h264dsp h264pred mpegvideo"
diff --git a/libavcodec/Makefile b/libavcodec/Makefile
index a142f3b324..52e6fce6fe 100644
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@ -229,6 +229,7 @@ OBJS-$(CONFIG_H264_DXVA2_HWACCEL)      += dxva2_h264.o
 OBJS-$(CONFIG_H264_VAAPI_HWACCEL)      += vaapi_h264.o
 OBJS-$(CONFIG_H264_VDA_HWACCEL)        += vda_h264.o
 OBJS-$(CONFIG_H264_VDA_DECODER)        += vda_h264_dec.o
+OBJS-$(CONFIG_H264_VDPAU_HWACCEL)      += vdpau_h264.o
 OBJS-$(CONFIG_HUFFYUV_DECODER)         += huffyuv.o huffyuvdec.o
 OBJS-$(CONFIG_HUFFYUV_ENCODER)         += huffyuv.o huffyuvenc.o
 OBJS-$(CONFIG_IAC_DECODER)             += imc.o
@@ -457,6 +458,7 @@ OBJS-$(CONFIG_VC1_DECODER)             += vc1dec.o vc1.o vc1data.o vc1dsp.o \
                                           intrax8.o intrax8dsp.o
 OBJS-$(CONFIG_VC1_DXVA2_HWACCEL)       += dxva2_vc1.o
 OBJS-$(CONFIG_VC1_VAAPI_HWACCEL)       += vaapi_vc1.o
+OBJS-$(CONFIG_VC1_VDPAU_HWACCEL)       += vdpau_vc1.o
 OBJS-$(CONFIG_VCR1_DECODER)            += vcr1.o
 OBJS-$(CONFIG_VCR1_ENCODER)            += vcr1.o
 OBJS-$(CONFIG_VMDAUDIO_DECODER)        += vmdav.o
diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c
index f3431338cc..9d228b7a43 100644
--- a/libavcodec/allcodecs.c
+++ b/libavcodec/allcodecs.c
@@ -78,6 +78,7 @@ void avcodec_register_all(void)
     REGISTER_HWACCEL(H264_DXVA2,        h264_dxva2);
     REGISTER_HWACCEL(H264_VAAPI,        h264_vaapi);
     REGISTER_HWACCEL(H264_VDA,          h264_vda);
+    REGISTER_HWACCEL(H264_VDPAU,        h264_vdpau);
     REGISTER_HWACCEL(MPEG1_VDPAU,       mpeg1_vdpau);
     REGISTER_HWACCEL(MPEG2_DXVA2,       mpeg2_dxva2);
     REGISTER_HWACCEL(MPEG2_VAAPI,       mpeg2_vaapi);
@@ -86,8 +87,10 @@ void avcodec_register_all(void)
     REGISTER_HWACCEL(MPEG4_VDPAU,       mpeg4_vdpau);
     REGISTER_HWACCEL(VC1_DXVA2,         vc1_dxva2);
     REGISTER_HWACCEL(VC1_VAAPI,         vc1_vaapi);
+    REGISTER_HWACCEL(VC1_VDPAU,         vc1_vdpau);
     REGISTER_HWACCEL(WMV3_DXVA2,        wmv3_dxva2);
     REGISTER_HWACCEL(WMV3_VAAPI,        wmv3_vaapi);
+    REGISTER_HWACCEL(WMV3_VDPAU,        wmv3_vdpau);
 
     /* video codecs */
     REGISTER_ENCODER(A64MULTI,          a64multi);
diff --git a/libavcodec/vdpau_h264.c b/libavcodec/vdpau_h264.c
new file mode 100644
index 0000000000..cbe6deeee7
--- /dev/null
+++ b/libavcodec/vdpau_h264.c
@@ -0,0 +1,196 @@
+/*
+ * MPEG-4 Part 10 / AVC / H.264 HW decode acceleration through VDPAU
+ *
+ * Copyright (c) 2008 NVIDIA
+ * Copyright (c) 2013 Rémi Denis-Courmont
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg 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.
+ *
+ * FFmpeg 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 FFmpeg; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <vdpau/vdpau.h>
+
+#include "avcodec.h"
+#include "h264.h"
+#include "vdpau.h"
+#include "vdpau_internal.h"
+
+static int32_t h264_foc(int foc)
+{
+    if (foc == INT_MAX)
+        foc = 0;
+    return foc;
+}
+
+static void vdpau_h264_clear_rf(VdpReferenceFrameH264 *rf)
+{
+    rf->surface             = VDP_INVALID_HANDLE;
+    rf->is_long_term        = VDP_FALSE;
+    rf->top_is_reference    = VDP_FALSE;
+    rf->bottom_is_reference = VDP_FALSE;
+    rf->field_order_cnt[0]  = 0;
+    rf->field_order_cnt[1]  = 0;
+    rf->frame_idx           = 0;
+}
+
+static void vdpau_h264_set_rf(VdpReferenceFrameH264 *rf, Picture *pic,
+                              int pic_structure)
+{
+    VdpVideoSurface surface = ff_vdpau_get_surface_id(pic);
+
+    if (pic_structure == 0)
+        pic_structure = pic->f.reference;
+
+    rf->surface             = surface;
+    rf->is_long_term        = pic->f.reference && pic->long_ref;
+    rf->top_is_reference    = (pic_structure & PICT_TOP_FIELD)    != 0;
+    rf->bottom_is_reference = (pic_structure & PICT_BOTTOM_FIELD) != 0;
+    rf->field_order_cnt[0]  = h264_foc(pic->field_poc[0]);
+    rf->field_order_cnt[1]  = h264_foc(pic->field_poc[1]);
+    rf->frame_idx           = pic->long_ref ? pic->pic_id : pic->frame_num;
+}
+
+static void vdpau_h264_set_reference_frames(AVCodecContext *avctx)
+{
+    H264Context * const h = avctx->priv_data;
+    AVVDPAUContext *hwctx = avctx->hwaccel_context;
+    VdpPictureInfoH264 *info = &hwctx->info.h264;
+    int list;
+
+    VdpReferenceFrameH264 *rf = &info->referenceFrames[0];
+#define H264_RF_COUNT FF_ARRAY_ELEMS(info->referenceFrames)
+
+    for (list = 0; list < 2; ++list) {
+        Picture **lp = list ? h->long_ref : h->short_ref;
+        int i, ls    = list ? 16          : h->short_ref_count;
+
+        for (i = 0; i < ls; ++i) {
+            Picture *pic = lp[i];
+            VdpReferenceFrameH264 *rf2;
+            VdpVideoSurface surface_ref;
+            int pic_frame_idx;
+
+            if (!pic || !pic->f.reference)
+                continue;
+            pic_frame_idx = pic->long_ref ? pic->pic_id : pic->frame_num;
+            surface_ref = ff_vdpau_get_surface_id(pic);
+
+            rf2 = &info->referenceFrames[0];
+            while (rf2 != rf) {
+                if ((rf2->surface      == surface_ref)   &&
+                    (rf2->is_long_term == pic->long_ref) &&
+                    (rf2->frame_idx    == pic_frame_idx))
+                    break;
+                ++rf2;
+            }
+            if (rf2 != rf) {
+                rf2->top_is_reference    |= (pic->f.reference & PICT_TOP_FIELD)    ? VDP_TRUE : VDP_FALSE;
+                rf2->bottom_is_reference |= (pic->f.reference & PICT_BOTTOM_FIELD) ? VDP_TRUE : VDP_FALSE;
+                continue;
+            }
+
+            if (rf >= &info->referenceFrames[H264_RF_COUNT])
+                continue;
+
+            vdpau_h264_set_rf(rf, pic, pic->f.reference);
+            ++rf;
+        }
+    }
+
+    for (; rf < &info->referenceFrames[H264_RF_COUNT]; ++rf)
+        vdpau_h264_clear_rf(rf);
+}
+
+static int vdpau_h264_start_frame(AVCodecContext *avctx,
+                                  const uint8_t *buffer, uint32_t size)
+{
+    H264Context * const h = avctx->priv_data;
+    AVVDPAUContext *hwctx = avctx->hwaccel_context;
+    MpegEncContext * const s = &h->s;
+    VdpPictureInfoH264 *info = &hwctx->info.h264;
+    Picture *pic = s->current_picture_ptr;
+
+    /* init VdpPictureInfoH264 */
+    info->slice_count                            = 0;
+    info->field_order_cnt[0]                     = h264_foc(pic->field_poc[0]);
+    info->field_order_cnt[1]                     = h264_foc(pic->field_poc[1]);
+    info->is_reference                           = h->nal_ref_idc != 0;
+    info->frame_num                              = h->frame_num;
+    info->field_pic_flag                         = s->picture_structure != PICT_FRAME;
+    info->bottom_field_flag                      = s->picture_structure == PICT_BOTTOM_FIELD;
+    info->num_ref_frames                         = h->sps.ref_frame_count;
+    info->mb_adaptive_frame_field_flag           = h->sps.mb_aff && !info->field_pic_flag;
+    info->constrained_intra_pred_flag            = h->pps.constrained_intra_pred;
+    info->weighted_pred_flag                     = h->pps.weighted_pred;
+    info->weighted_bipred_idc                    = h->pps.weighted_bipred_idc;
+    info->frame_mbs_only_flag                    = h->sps.frame_mbs_only_flag;
+    info->transform_8x8_mode_flag                = h->pps.transform_8x8_mode;
+    info->chroma_qp_index_offset                 = h->pps.chroma_qp_index_offset[0];
+    info->second_chroma_qp_index_offset          = h->pps.chroma_qp_index_offset[1];
+    info->pic_init_qp_minus26                    = h->pps.init_qp - 26;
+    info->num_ref_idx_l0_active_minus1           = h->pps.ref_count[0] - 1;
+    info->num_ref_idx_l1_active_minus1           = h->pps.ref_count[1] - 1;
+    info->log2_max_frame_num_minus4              = h->sps.log2_max_frame_num - 4;
+    info->pic_order_cnt_type                     = h->sps.poc_type;
+    info->log2_max_pic_order_cnt_lsb_minus4      = h->sps.poc_type ? 0 : h->sps.log2_max_poc_lsb - 4;
+    info->delta_pic_order_always_zero_flag       = h->sps.delta_pic_order_always_zero_flag;
+    info->direct_8x8_inference_flag              = h->sps.direct_8x8_inference_flag;
+    info->entropy_coding_mode_flag               = h->pps.cabac;
+    info->pic_order_present_flag                 = h->pps.pic_order_present;
+    info->deblocking_filter_control_present_flag = h->pps.deblocking_filter_parameters_present;
+    info->redundant_pic_cnt_present_flag         = h->pps.redundant_pic_cnt_present;
+
+    memcpy(info->scaling_lists_4x4, h->pps.scaling_matrix4,
+           sizeof(info->scaling_lists_4x4));
+    memcpy(info->scaling_lists_8x8[0], h->pps.scaling_matrix8[0],
+           sizeof(info->scaling_lists_8x8[0]));
+    memcpy(info->scaling_lists_8x8[1], h->pps.scaling_matrix8[3],
+           sizeof(info->scaling_lists_8x8[1]));
+
+    vdpau_h264_set_reference_frames(avctx);
+
+    return ff_vdpau_common_start_frame(avctx, buffer, size);
+}
+
+static const uint8_t start_code_prefix[3] = { 0x00, 0x00, 0x01 };
+
+static int vdpau_h264_decode_slice(AVCodecContext *avctx,
+                                   const uint8_t *buffer, uint32_t size)
+{
+    AVVDPAUContext *hwctx = avctx->hwaccel_context;
+    int val;
+
+    val = ff_vdpau_add_buffer(avctx, start_code_prefix, 3);
+    if (val)
+        return val;
+
+    val = ff_vdpau_add_buffer(avctx, buffer, size);
+    if (val)
+        return val;
+
+    hwctx->info.h264.slice_count++;
+    return 0;
+}
+
+AVHWAccel ff_h264_vdpau_hwaccel = {
+    .name           = "h264_vdpau",
+    .type           = AVMEDIA_TYPE_VIDEO,
+    .id             = AV_CODEC_ID_H264,
+    .pix_fmt        = AV_PIX_FMT_VDPAU,
+    .start_frame    = vdpau_h264_start_frame,
+    .end_frame      = ff_vdpau_common_end_frame,
+    .decode_slice   = vdpau_h264_decode_slice,
+};
diff --git a/libavcodec/vdpau_vc1.c b/libavcodec/vdpau_vc1.c
new file mode 100644
index 0000000000..7c75243809
--- /dev/null
+++ b/libavcodec/vdpau_vc1.c
@@ -0,0 +1,128 @@
+/*
+ * VC-1 decode acceleration through VDPAU
+ *
+ * Copyright (c) 2008 NVIDIA
+ * Copyright (c) 2013 Rémi Denis-Courmont
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg 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.
+ *
+ * FFmpeg 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 FFmpeg; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <vdpau/vdpau.h>
+
+#include "avcodec.h"
+#include "vc1.h"
+#include "vdpau.h"
+#include "vdpau_internal.h"
+
+static int vdpau_vc1_start_frame(AVCodecContext *avctx,
+                                 const uint8_t *buffer, uint32_t size)
+{
+    VC1Context * const v  = avctx->priv_data;
+    AVVDPAUContext *hwctx = avctx->hwaccel_context;
+    MpegEncContext * const s = &v->s;
+    VdpPictureInfoVC1 *info = &hwctx->info.vc1;
+    VdpVideoSurface ref;
+
+    /*  fill LvPictureInfoVC1 struct */
+    info->forward_reference  = VDP_INVALID_HANDLE;
+    info->backward_reference = VDP_INVALID_HANDLE;
+
+    switch (s->pict_type) {
+    case AV_PICTURE_TYPE_B:
+        ref = ff_vdpau_get_surface_id(&s->next_picture);
+        assert(ref != VDP_INVALID_HANDLE);
+        info->backward_reference = ref;
+        /* fall-through */
+    case AV_PICTURE_TYPE_P:
+        ref = ff_vdpau_get_surface_id(&s->last_picture);
+        assert(ref != VDP_INVALID_HANDLE);
+        info->forward_reference  = ref;
+    }
+
+    info->slice_count       = 0;
+    if (v->bi_type)
+        info->picture_type  = 4;
+    else
+        info->picture_type  = s->pict_type - 1 + s->pict_type / 3;
+
+    info->frame_coding_mode = v->fcm;
+    info->postprocflag      = v->postprocflag;
+    info->pulldown          = v->broadcast;
+    info->interlace         = v->interlace;
+    info->tfcntrflag        = v->tfcntrflag;
+    info->finterpflag       = v->finterpflag;
+    info->psf               = v->psf;
+    info->dquant            = v->dquant;
+    info->panscan_flag      = v->panscanflag;
+    info->refdist_flag      = v->refdist_flag;
+    info->quantizer         = v->quantizer_mode;
+    info->extended_mv       = v->extended_mv;
+    info->extended_dmv      = v->extended_dmv;
+    info->overlap           = v->overlap;
+    info->vstransform       = v->vstransform;
+    info->loopfilter        = v->s.loop_filter;
+    info->fastuvmc          = v->fastuvmc;
+    info->range_mapy_flag   = v->range_mapy_flag;
+    info->range_mapy        = v->range_mapy;
+    info->range_mapuv_flag  = v->range_mapuv_flag;
+    info->range_mapuv       = v->range_mapuv;
+    /* Specific to simple/main profile only */
+    info->multires          = v->multires;
+    info->syncmarker        = v->s.resync_marker;
+    info->rangered          = v->rangered | (v->rangeredfrm << 1);
+    info->maxbframes        = v->s.max_b_frames;
+    info->deblockEnable     = v->postprocflag & 1;
+    info->pquant            = v->pq;
+
+    return ff_vdpau_common_start_frame(avctx, buffer, size);
+}
+
+static int vdpau_vc1_decode_slice(AVCodecContext *avctx,
+                                  const uint8_t *buffer, uint32_t size)
+{
+    AVVDPAUContext *hwctx = avctx->hwaccel_context;
+    int val;
+
+    val = ff_vdpau_add_buffer(avctx, buffer, size);
+    if (val < 0)
+        return val;
+
+    hwctx->info.vc1.slice_count++;
+    return 0;
+}
+
+#if CONFIG_WMV3_VDPAU_HWACCEL
+AVHWAccel ff_wmv3_vdpau_hwaccel = {
+    .name           = "wm3_vdpau",
+    .type           = AVMEDIA_TYPE_VIDEO,
+    .id             = AV_CODEC_ID_WMV3,
+    .pix_fmt        = AV_PIX_FMT_VDPAU,
+    .start_frame    = vdpau_vc1_start_frame,
+    .end_frame      = ff_vdpau_common_end_frame,
+    .decode_slice   = vdpau_vc1_decode_slice,
+};
+#endif
+
+AVHWAccel ff_vc1_vdpau_hwaccel = {
+    .name           = "vc1_vdpau",
+    .type           = AVMEDIA_TYPE_VIDEO,
+    .id             = AV_CODEC_ID_VC1,
+    .pix_fmt        = AV_PIX_FMT_VDPAU,
+    .start_frame    = vdpau_vc1_start_frame,
+    .end_frame      = ff_vdpau_common_end_frame,
+    .decode_slice   = vdpau_vc1_decode_slice,
+};
diff --git a/libavcodec/version.h b/libavcodec/version.h
index b5b826a740..9c1e228ed4 100644
--- a/libavcodec/version.h
+++ b/libavcodec/version.h
@@ -29,7 +29,7 @@
 #include "libavutil/avutil.h"
 
 #define LIBAVCODEC_VERSION_MAJOR 54
-#define LIBAVCODEC_VERSION_MINOR 88
+#define LIBAVCODEC_VERSION_MINOR 89
 #define LIBAVCODEC_VERSION_MICRO 100
 
 #define LIBAVCODEC_VERSION_INT  AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
diff --git a/libavdevice/v4l2.c b/libavdevice/v4l2.c
index b2e5fed27d..5e12575e00 100644
--- a/libavdevice/v4l2.c
+++ b/libavdevice/v4l2.c
@@ -784,21 +784,16 @@ static int v4l2_read_header(AVFormatContext *s1)
     enum AVPixelFormat pix_fmt = AV_PIX_FMT_NONE;
 
     st = avformat_new_stream(s1, NULL);
-    if (!st) {
-        res = AVERROR(ENOMEM);
-        goto out;
-    }
+    if (!st)
+        return AVERROR(ENOMEM);
 
     s->fd = device_open(s1);
-    if (s->fd < 0) {
-        res = s->fd;
-        goto out;
-    }
+    if (s->fd < 0)
+        return s->fd;
 
     if (s->list_format) {
         list_formats(s1, s->fd, s->list_format);
-        res = AVERROR_EXIT;
-        goto out;
+        return AVERROR_EXIT;
     }
 
     avpriv_set_pts_info(st, 64, 1, 1000000); /* 64 bits pts in us */
@@ -815,8 +810,7 @@ static int v4l2_read_header(AVFormatContext *s1)
             av_log(s1, AV_LOG_ERROR, "No such input format: %s.\n",
                    s->pixel_format);
 
-            res = AVERROR(EINVAL);
-            goto out;
+            return AVERROR(EINVAL);
         }
     }
 
@@ -829,8 +823,7 @@ static int v4l2_read_header(AVFormatContext *s1)
         if (v4l2_ioctl(s->fd, VIDIOC_G_FMT, &fmt) < 0) {
             av_log(s1, AV_LOG_ERROR, "ioctl(VIDIOC_G_FMT): %s\n",
                    strerror(errno));
-            res = AVERROR(errno);
-            goto out;
+            return AVERROR(errno);
         }
 
         s->width  = fmt.fmt.pix.width;
@@ -854,16 +847,15 @@ static int v4l2_read_header(AVFormatContext *s1)
                "codec_id %d, pix_fmt %d.\n", s1->video_codec_id, pix_fmt);
         v4l2_close(s->fd);
 
-        res = AVERROR(EIO);
-        goto out;
+        return AVERROR(EIO);
     }
     if ((res = av_image_check_size(s->width, s->height, 0, s1)) < 0)
-        goto out;
+        return res;
 
     s->frame_format = desired_format;
 
     if ((res = v4l2_set_parameters(s1)) < 0)
-        goto out;
+        return res;
 
     st->codec->pix_fmt = fmt_v4l2ff(desired_format, codec_id);
     s->frame_size =
@@ -872,7 +864,7 @@ static int v4l2_read_header(AVFormatContext *s1)
     if ((res = mmap_init(s1)) ||
         (res = mmap_start(s1)) < 0) {
         v4l2_close(s->fd);
-        goto out;
+        return res;
     }
 
     s->top_field_first = first_field(s->fd);
@@ -888,8 +880,7 @@ static int v4l2_read_header(AVFormatContext *s1)
     st->codec->height = s->height;
     st->codec->bit_rate = s->frame_size * 1/av_q2d(st->codec->time_base) * 8;
 
-out:
-    return res;
+    return 0;
 }
 
 static int v4l2_read_packet(AVFormatContext *s1, AVPacket *pkt)