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Diffstat (limited to 'libavcodec/libxvid.c')
-rw-r--r--libavcodec/libxvid.c201
1 files changed, 139 insertions, 62 deletions
diff --git a/libavcodec/libxvid.c b/libavcodec/libxvid.c
index fe68c8ebcc..97ab2d4a07 100644
--- a/libavcodec/libxvid.c
+++ b/libavcodec/libxvid.c
@@ -2,20 +2,20 @@
* Interface to xvidcore for mpeg4 encoding
* Copyright (c) 2004 Adam Thayer <krevnik@comcast.net>
*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or
+ * 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.
*
- * Libav is distributed in the hope that it will be useful,
+ * 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 Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
@@ -28,6 +28,8 @@
#include <xvid.h>
#include <unistd.h>
#include "avcodec.h"
+#include "internal.h"
+#include "libavutil/file.h"
#include "libavutil/cpu.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/mathematics.h"
@@ -46,6 +48,7 @@
* This stores all the private context for the codec.
*/
struct xvid_context {
+ AVClass *class;
void *encoder_handle; /**< Handle for Xvid encoder */
int xsize; /**< Frame x size */
int ysize; /**< Frame y size */
@@ -57,8 +60,13 @@ struct xvid_context {
char *twopassbuffer; /**< Character buffer for two-pass */
char *old_twopassbuffer; /**< Old character buffer (two-pass) */
char *twopassfile; /**< second pass temp file name */
+ int twopassfd;
unsigned char *intra_matrix; /**< P-Frame Quant Matrix */
unsigned char *inter_matrix; /**< I-Frame Quant Matrix */
+ int lumi_aq; /**< Lumi masking as an aq method */
+ int variance_aq; /**< Variance adaptive quantization */
+ int ssim; /**< SSIM information display mode */
+ int ssim_acc; /**< SSIM accuracy. 0: accurate. 4: fast. */
};
/**
@@ -69,6 +77,8 @@ struct xvid_ff_pass1 {
struct xvid_context *context; /**< Pointer to private context */
};
+static int xvid_encode_close(AVCodecContext *avctx);
+
/*
* Xvid 2-Pass Kludge Section
*
@@ -99,7 +109,7 @@ static int xvid_ff_2pass_create(xvid_plg_create_t * param,
/* This is because we can safely prevent a buffer overflow */
log[0] = 0;
snprintf(log, BUFFER_REMAINING(log),
- "# avconv 2-pass log file, using xvid codec\n");
+ "# ffmpeg 2-pass log file, using xvid codec\n");
snprintf(BUFFER_CAT(log), BUFFER_REMAINING(log),
"# Do not modify. libxvidcore version: %d.%d.%d\n\n",
XVID_VERSION_MAJOR(XVID_VERSION),
@@ -346,43 +356,47 @@ static av_cold int xvid_encode_init(AVCodecContext *avctx) {
uint16_t *intra, *inter;
int fd;
- xvid_plugin_single_t single = { 0 };
- struct xvid_ff_pass1 rc2pass1 = { 0 };
- xvid_plugin_2pass2_t rc2pass2 = { 0 };
- xvid_gbl_init_t xvid_gbl_init = { 0 };
- xvid_enc_create_t xvid_enc_create = { 0 };
- xvid_enc_plugin_t plugins[7];
+ xvid_plugin_single_t single = { 0 };
+ struct xvid_ff_pass1 rc2pass1 = { 0 };
+ xvid_plugin_2pass2_t rc2pass2 = { 0 };
+ xvid_plugin_lumimasking_t masking_l = { 0 }; /* For lumi masking */
+ xvid_plugin_lumimasking_t masking_v = { 0 }; /* For variance AQ */
+ xvid_plugin_ssim_t ssim = { 0 };
+ xvid_gbl_init_t xvid_gbl_init = { 0 };
+ xvid_enc_create_t xvid_enc_create = { 0 };
+ xvid_enc_plugin_t plugins[4];
+
+ x->twopassfd = -1;
- /* Bring in VOP flags from avconv command-line */
- x->vop_flags = XVID_VOP_HALFPEL; /* Bare minimum quality */
+ /* Bring in VOP flags from ffmpeg command-line */
+ x->vop_flags = XVID_VOP_HALFPEL; /* Bare minimum quality */
if( xvid_flags & CODEC_FLAG_4MV )
- x->vop_flags |= XVID_VOP_INTER4V; /* Level 3 */
- if( avctx->trellis
- )
- x->vop_flags |= XVID_VOP_TRELLISQUANT; /* Level 5 */
+ x->vop_flags |= XVID_VOP_INTER4V; /* Level 3 */
+ if( avctx->trellis)
+ x->vop_flags |= XVID_VOP_TRELLISQUANT; /* Level 5 */
if( xvid_flags & CODEC_FLAG_AC_PRED )
- x->vop_flags |= XVID_VOP_HQACPRED; /* Level 6 */
+ x->vop_flags |= XVID_VOP_HQACPRED; /* Level 6 */
if( xvid_flags & CODEC_FLAG_GRAY )
- x->vop_flags |= XVID_VOP_GREYSCALE;
+ x->vop_flags |= XVID_VOP_GREYSCALE;
/* Decide which ME quality setting to use */
x->me_flags = 0;
switch( avctx->me_method ) {
case ME_FULL: /* Quality 6 */
- x->me_flags |= XVID_ME_EXTSEARCH16
- | XVID_ME_EXTSEARCH8;
+ x->me_flags |= XVID_ME_EXTSEARCH16
+ | XVID_ME_EXTSEARCH8;
case ME_EPZS: /* Quality 4 */
- x->me_flags |= XVID_ME_ADVANCEDDIAMOND8
- | XVID_ME_HALFPELREFINE8
- | XVID_ME_CHROMA_PVOP
- | XVID_ME_CHROMA_BVOP;
+ x->me_flags |= XVID_ME_ADVANCEDDIAMOND8
+ | XVID_ME_HALFPELREFINE8
+ | XVID_ME_CHROMA_PVOP
+ | XVID_ME_CHROMA_BVOP;
case ME_LOG: /* Quality 2 */
case ME_PHODS:
case ME_X1:
- x->me_flags |= XVID_ME_ADVANCEDDIAMOND16
- | XVID_ME_HALFPELREFINE16;
+ x->me_flags |= XVID_ME_ADVANCEDDIAMOND16
+ | XVID_ME_HALFPELREFINE16;
case ME_ZERO: /* Quality 0 */
default:
@@ -393,29 +407,29 @@ static av_cold int xvid_encode_init(AVCodecContext *avctx) {
switch( avctx->mb_decision ) {
case 2:
x->vop_flags |= XVID_VOP_MODEDECISION_RD;
- x->me_flags |= XVID_ME_HALFPELREFINE8_RD
- | XVID_ME_QUARTERPELREFINE8_RD
- | XVID_ME_EXTSEARCH_RD
- | XVID_ME_CHECKPREDICTION_RD;
+ x->me_flags |= XVID_ME_HALFPELREFINE8_RD
+ | XVID_ME_QUARTERPELREFINE8_RD
+ | XVID_ME_EXTSEARCH_RD
+ | XVID_ME_CHECKPREDICTION_RD;
case 1:
if( !(x->vop_flags & XVID_VOP_MODEDECISION_RD) )
x->vop_flags |= XVID_VOP_FAST_MODEDECISION_RD;
- x->me_flags |= XVID_ME_HALFPELREFINE16_RD
- | XVID_ME_QUARTERPELREFINE16_RD;
+ x->me_flags |= XVID_ME_HALFPELREFINE16_RD
+ | XVID_ME_QUARTERPELREFINE16_RD;
default:
break;
}
- /* Bring in VOL flags from avconv command-line */
+ /* Bring in VOL flags from ffmpeg command-line */
x->vol_flags = 0;
if( xvid_flags & CODEC_FLAG_GMC ) {
- x->vol_flags |= XVID_VOL_GMC;
- x->me_flags |= XVID_ME_GME_REFINE;
+ x->vol_flags |= XVID_VOL_GMC;
+ x->me_flags |= XVID_ME_GME_REFINE;
}
if( xvid_flags & CODEC_FLAG_QPEL ) {
- x->vol_flags |= XVID_VOL_QUARTERPEL;
- x->me_flags |= XVID_ME_QUARTERPELREFINE16;
+ x->vol_flags |= XVID_VOL_QUARTERPEL;
+ x->me_flags |= XVID_ME_QUARTERPELREFINE16;
if( x->vop_flags & XVID_VOP_INTER4V )
x->me_flags |= XVID_ME_QUARTERPELREFINE8;
}
@@ -471,7 +485,7 @@ static av_cold int xvid_encode_init(AVCodecContext *avctx) {
if( x->twopassbuffer == NULL || x->old_twopassbuffer == NULL ) {
av_log(avctx, AV_LOG_ERROR,
"Xvid: Cannot allocate 2-pass log buffers\n");
- return -1;
+ goto fail;
}
x->twopassbuffer[0] = x->old_twopassbuffer[0] = 0;
@@ -482,28 +496,27 @@ static av_cold int xvid_encode_init(AVCodecContext *avctx) {
rc2pass2.version = XVID_VERSION;
rc2pass2.bitrate = avctx->bit_rate;
- fd = ff_tempfile("xvidff.", &x->twopassfile);
+ fd = av_tempfile("xvidff.", &x->twopassfile, 0, avctx);
if( fd == -1 ) {
av_log(avctx, AV_LOG_ERROR,
"Xvid: Cannot write 2-pass pipe\n");
- return -1;
+ goto fail;
}
+ x->twopassfd = fd;
if( avctx->stats_in == NULL ) {
av_log(avctx, AV_LOG_ERROR,
"Xvid: No 2-pass information loaded for second pass\n");
- return -1;
+ goto fail;
}
if( strlen(avctx->stats_in) >
write(fd, avctx->stats_in, strlen(avctx->stats_in)) ) {
- close(fd);
av_log(avctx, AV_LOG_ERROR,
"Xvid: Cannot write to 2-pass pipe\n");
- return -1;
+ goto fail;
}
- close(fd);
rc2pass2.filename = x->twopassfile;
plugins[xvid_enc_create.num_plugins].func = xvid_plugin_2pass2;
plugins[xvid_enc_create.num_plugins].param = &rc2pass2;
@@ -518,10 +531,41 @@ static av_cold int xvid_encode_init(AVCodecContext *avctx) {
xvid_enc_create.num_plugins++;
}
+ if ( avctx->lumi_masking != 0.0)
+ x->lumi_aq = 1;
+
/* Luminance Masking */
- if( 0.0 != avctx->lumi_masking ) {
+ if( x->lumi_aq ) {
+ masking_l.method = 0;
plugins[xvid_enc_create.num_plugins].func = xvid_plugin_lumimasking;
- plugins[xvid_enc_create.num_plugins].param = NULL;
+
+ /* The old behavior is that when avctx->lumi_masking is specified,
+ * plugins[...].param = NULL. Trying to keep the old behavior here. */
+ plugins[xvid_enc_create.num_plugins].param = avctx->lumi_masking ? NULL : &masking_l ;
+ xvid_enc_create.num_plugins++;
+ }
+
+ /* Variance AQ */
+ if( x->variance_aq ) {
+ masking_v.method = 1;
+ plugins[xvid_enc_create.num_plugins].func = xvid_plugin_lumimasking;
+ plugins[xvid_enc_create.num_plugins].param = &masking_v ;
+ xvid_enc_create.num_plugins++;
+ }
+
+ if( x->lumi_aq && x->variance_aq )
+ av_log(avctx, AV_LOG_INFO,
+ "Both lumi_aq and variance_aq are enabled. The resulting quality"
+ "will be the worse one of the two effects made by the AQ.\n");
+
+ /* SSIM */
+ if( x->ssim ) {
+ plugins[xvid_enc_create.num_plugins].func = xvid_plugin_ssim;
+ ssim.b_printstat = ( x->ssim == 2 );
+ ssim.acc = x->ssim_acc;
+ ssim.cpu_flags = xvid_gbl_init.cpu_flags;
+ ssim.b_visualize = 0;
+ plugins[xvid_enc_create.num_plugins].param = &ssim;
xvid_enc_create.num_plugins++;
}
@@ -597,11 +641,13 @@ static av_cold int xvid_encode_init(AVCodecContext *avctx) {
xvid_enc_create.bquant_ratio = 100 * avctx->b_quant_factor;
if( avctx->max_b_frames > 0 && !x->quicktime_format ) xvid_enc_create.global |= XVID_GLOBAL_PACKED;
+ av_assert0(xvid_enc_create.num_plugins + (!!x->ssim) + (!!x->variance_aq) + (!!x->lumi_aq) <= FF_ARRAY_ELEMS(plugins));
+
/* Create encoder context */
xerr = xvid_encore(NULL, XVID_ENC_CREATE, &xvid_enc_create, NULL);
if( xerr ) {
av_log(avctx, AV_LOG_ERROR, "Xvid: Could not create encoder reference\n");
- return -1;
+ goto fail;
}
x->encoder_handle = xvid_enc_create.handle;
@@ -610,6 +656,9 @@ static av_cold int xvid_encode_init(AVCodecContext *avctx) {
return AVERROR(ENOMEM);
return 0;
+fail:
+ xvid_encode_close(avctx);
+ return -1;
}
static int xvid_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
@@ -625,11 +674,8 @@ static int xvid_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
xvid_enc_frame_t xvid_enc_frame = { 0 };
xvid_enc_stats_t xvid_enc_stats = { 0 };
- if (!user_packet &&
- (ret = av_new_packet(pkt, mb_width*mb_height*MAX_MB_BYTES + FF_MIN_BUFFER_SIZE)) < 0) {
- av_log(avctx, AV_LOG_ERROR, "Error getting output packet.\n");
+ if ((ret = ff_alloc_packet2(avctx, pkt, mb_width*mb_height*MAX_MB_BYTES + FF_MIN_BUFFER_SIZE)) < 0)
return ret;
- }
/* Start setting up the frame */
xvid_enc_frame.version = XVID_VERSION;
@@ -663,11 +709,13 @@ static int xvid_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
XVID_TYPE_AUTO;
/* Pixel aspect ratio setting */
- if (avctx->sample_aspect_ratio.num < 1 || avctx->sample_aspect_ratio.num > 255 ||
- avctx->sample_aspect_ratio.den < 1 || avctx->sample_aspect_ratio.den > 255) {
- av_log(avctx, AV_LOG_ERROR, "Invalid pixel aspect ratio %i/%i\n",
+ if (avctx->sample_aspect_ratio.num < 0 || avctx->sample_aspect_ratio.num > 255 ||
+ avctx->sample_aspect_ratio.den < 0 || avctx->sample_aspect_ratio.den > 255) {
+ av_log(avctx, AV_LOG_WARNING,
+ "Invalid pixel aspect ratio %i/%i, limit is 255/255 reducing\n",
avctx->sample_aspect_ratio.num, avctx->sample_aspect_ratio.den);
- return -1;
+ av_reduce(&avctx->sample_aspect_ratio.num, &avctx->sample_aspect_ratio.den,
+ avctx->sample_aspect_ratio.num, avctx->sample_aspect_ratio.den, 255);
}
xvid_enc_frame.par = XVID_PAR_EXT;
xvid_enc_frame.par_width = avctx->sample_aspect_ratio.num;
@@ -734,20 +782,48 @@ static int xvid_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
static av_cold int xvid_encode_close(AVCodecContext *avctx) {
struct xvid_context *x = avctx->priv_data;
- xvid_encore(x->encoder_handle, XVID_ENC_DESTROY, NULL, NULL);
+ if(x->encoder_handle)
+ xvid_encore(x->encoder_handle, XVID_ENC_DESTROY, NULL, NULL);
+ x->encoder_handle = NULL;
av_freep(&avctx->extradata);
if( x->twopassbuffer != NULL ) {
- av_free(x->twopassbuffer);
- av_free(x->old_twopassbuffer);
+ av_freep(&x->twopassbuffer);
+ av_freep(&x->old_twopassbuffer);
+ avctx->stats_out = NULL;
+ }
+ if (x->twopassfd>=0) {
+ unlink(x->twopassfile);
+ close(x->twopassfd);
+ x->twopassfd = -1;
}
- av_free(x->twopassfile);
- av_free(x->intra_matrix);
- av_free(x->inter_matrix);
+ av_freep(&x->twopassfile);
+ av_freep(&x->intra_matrix);
+ av_freep(&x->inter_matrix);
return 0;
}
+#define OFFSET(x) offsetof(struct xvid_context, x)
+#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
+static const AVOption options[] = {
+ { "lumi_aq", "Luminance masking AQ", OFFSET(lumi_aq), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE },
+ { "variance_aq", "Variance AQ", OFFSET(variance_aq), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE },
+ { "ssim", "Show SSIM information to stdout", OFFSET(ssim), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 2, VE, "ssim" },
+ { "off", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, INT_MIN, INT_MAX, VE, "ssim" },
+ { "avg", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, INT_MIN, INT_MAX, VE, "ssim" },
+ { "frame", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 2 }, INT_MIN, INT_MAX, VE, "ssim" },
+ { "ssim_acc", "SSIM accuracy", OFFSET(ssim_acc), AV_OPT_TYPE_INT, { .i64 = 2 }, 0, 4, VE },
+ { NULL },
+};
+
+static const AVClass xvid_class = {
+ .class_name = "libxvid",
+ .item_name = av_default_item_name,
+ .option = options,
+ .version = LIBAVUTIL_VERSION_INT,
+};
+
AVCodec ff_libxvid_encoder = {
.name = "libxvid",
.long_name = NULL_IF_CONFIG_SMALL("libxvidcore MPEG-4 part 2"),
@@ -758,4 +834,5 @@ AVCodec ff_libxvid_encoder = {
.encode2 = xvid_encode_frame,
.close = xvid_encode_close,
.pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE },
+ .priv_class = &xvid_class,
};
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-09 12:02:54 +0000