-/*****************************************************************************\r
- * video.c: video decoder using the ffmpeg library\r
- *****************************************************************************\r
- * Copyright (C) 1999-2001 VideoLAN\r
- * $Id$\r
- *\r
- * Authors: Laurent Aimar <fenrir@via.ecp.fr>\r
- * Gildas Bazin <gbazin@videolan.org>\r
- *\r
- * This program is free software; you can redistribute it and/or modify\r
- * it under the terms of the GNU General Public License as published by\r
- * the Free Software Foundation; either version 2 of the License, or\r
- * (at your option) any later version.\r
- *\r
- * This program is distributed in the hope that it will be useful,\r
- * but WITHOUT ANY WARRANTY; without even the implied warranty of\r
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\r
- * GNU General Public License for more details.\r
- *\r
- * You should have received a copy of the GNU General Public License\r
- * along with this program; if not, write to the Free Software\r
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.\r
- *****************************************************************************/\r
-\r
-/*****************************************************************************\r
- * Preamble\r
- *****************************************************************************/\r
-#include <vlc/vlc.h>\r
-#include <vlc/decoder.h>\r
-\r
-/* ffmpeg header */\r
-#ifdef HAVE_FFMPEG_AVCODEC_H\r
-# include <ffmpeg/avcodec.h>\r
-#else\r
-# include <avcodec.h>\r
-#endif\r
-\r
-#include "ffmpeg.h"\r
-\r
-/*****************************************************************************\r
- * decoder_sys_t : decoder descriptor\r
- *****************************************************************************/\r
-struct decoder_sys_t\r
-{\r
- /* Common part between video and audio decoder */\r
- int i_cat;\r
- int i_codec_id;\r
- char *psz_namecodec;\r
-\r
- AVCodecContext *p_context;\r
- AVCodec *p_codec;\r
-\r
- /* Video decoder specific part */\r
- mtime_t input_pts;\r
- mtime_t input_dts;\r
- mtime_t i_pts;\r
-\r
- AVFrame *p_ff_pic;\r
- BITMAPINFOHEADER *p_format;\r
-\r
- /* for frame skipping algo */\r
- int b_hurry_up;\r
- int i_frame_skip;\r
-\r
- /* how many decoded frames are late */\r
- int i_late_frames;\r
- mtime_t i_late_frames_start;\r
-\r
- /* for direct rendering */\r
- int b_direct_rendering;\r
-\r
- vlc_bool_t b_has_b_frames;\r
-\r
- /* Hack to force display of still pictures */\r
- vlc_bool_t b_first_frame;\r
-\r
- int i_buffer_orig, i_buffer;\r
- char *p_buffer_orig, *p_buffer;\r
-\r
- /* Postprocessing handle */\r
- void *p_pp;\r
- vlc_bool_t b_pp;\r
- vlc_bool_t b_pp_async;\r
- vlc_bool_t b_pp_init;\r
-};\r
-\r
-/* FIXME (dummy palette for now) */\r
-static AVPaletteControl palette_control;\r
-\r
-/*****************************************************************************\r
- * Local prototypes\r
- *****************************************************************************/\r
-static void ffmpeg_CopyPicture ( decoder_t *, picture_t *, AVFrame * );\r
-static int ffmpeg_GetFrameBuf ( struct AVCodecContext *, AVFrame * );\r
-static void ffmpeg_ReleaseFrameBuf( struct AVCodecContext *, AVFrame * );\r
-\r
-static uint32_t ffmpeg_CodecTag( vlc_fourcc_t fcc )\r
-{\r
- uint8_t *p = (uint8_t*)&fcc;\r
- return p[0] | (p[1] << 8) | (p[2] << 16) | (p[3] << 24);\r
-}\r
-\r
-/*****************************************************************************\r
- * Local Functions\r
- *****************************************************************************/\r
-static uint32_t ffmpeg_PixFmtToChroma( int i_ff_chroma )\r
-{\r
- switch( i_ff_chroma )\r
- {\r
- case PIX_FMT_YUV420P:\r
- return VLC_FOURCC('I','4','2','0');\r
- case PIX_FMT_YUV422P:\r
- return VLC_FOURCC('I','4','2','2');\r
- case PIX_FMT_YUV444P:\r
- return VLC_FOURCC('I','4','4','4');\r
-\r
- case PIX_FMT_YUV422:\r
- return VLC_FOURCC('Y','U','Y','2');\r
-\r
- case PIX_FMT_RGB555:\r
- return VLC_FOURCC('R','V','1','5');\r
- case PIX_FMT_RGB565:\r
- return VLC_FOURCC('R','V','1','6');\r
- case PIX_FMT_RGB24:\r
- return VLC_FOURCC('R','V','2','4');\r
- case PIX_FMT_RGBA32:\r
- return VLC_FOURCC('R','V','3','2');\r
- case PIX_FMT_GRAY8:\r
- return VLC_FOURCC('G','R','E','Y');\r
-\r
- case PIX_FMT_YUV410P:\r
- case PIX_FMT_YUV411P:\r
- case PIX_FMT_BGR24:\r
- default:\r
- return 0;\r
- }\r
-}\r
-\r
-/* Returns a new picture buffer */\r
-static inline picture_t *ffmpeg_NewPictBuf( decoder_t *p_dec,\r
- AVCodecContext *p_context )\r
-{\r
- decoder_sys_t *p_sys = p_dec->p_sys;\r
- picture_t *p_pic;\r
-\r
- p_dec->fmt_out.video.i_width = p_context->width;\r
- p_dec->fmt_out.video.i_height = p_context->height;\r
- p_dec->fmt_out.i_codec = ffmpeg_PixFmtToChroma( p_context->pix_fmt );\r
-\r
- if( !p_context->width || !p_context->height )\r
- {\r
- return NULL; /* invalid display size */\r
- }\r
-\r
- if( !p_dec->fmt_out.i_codec )\r
- {\r
- /* we make conversion if possible*/\r
- p_dec->fmt_out.i_codec = VLC_FOURCC('I','4','2','0');\r
- }\r
-\r
- /* If an aspect-ratio was specified in the input format then force it */\r
- if( p_dec->fmt_in.video.i_aspect )\r
- {\r
- p_dec->fmt_out.video.i_aspect = p_dec->fmt_in.video.i_aspect;\r
- }\r
- else\r
- {\r
-#if LIBAVCODEC_BUILD >= 4687\r
- p_dec->fmt_out.video.i_aspect =\r
- VOUT_ASPECT_FACTOR * ( av_q2d(p_context->sample_aspect_ratio) *\r
- p_context->width / p_context->height );\r
-#else\r
- p_dec->fmt_out.video.i_aspect =\r
- VOUT_ASPECT_FACTOR * p_context->aspect_ratio;\r
-#endif\r
- if( p_dec->fmt_out.video.i_aspect == 0 )\r
- {\r
- p_dec->fmt_out.video.i_aspect =\r
- VOUT_ASPECT_FACTOR * p_context->width / p_context->height;\r
- }\r
- }\r
-\r
- if( p_context->frame_rate > 0 && p_context->frame_rate_base > 0 )\r
- {\r
- p_dec->fmt_out.video.i_frame_rate = p_context->frame_rate;\r
- p_dec->fmt_out.video.i_frame_rate_base = p_context->frame_rate_base;\r
- }\r
-\r
- p_pic = p_dec->pf_vout_buffer_new( p_dec );\r
-\r
-#ifdef LIBAVCODEC_PP\r
- if( p_sys->p_pp && p_sys->b_pp && !p_sys->b_pp_init )\r
- {\r
- E_(InitPostproc)( p_dec, p_sys->p_pp, p_context->width,\r
- p_context->height, p_context->pix_fmt );\r
- p_sys->b_pp_init = VLC_TRUE;\r
- }\r
-#endif\r
-\r
- return p_pic;\r
-}\r
-\r
-/*****************************************************************************\r
- * InitVideo: initialize the video decoder\r
- *****************************************************************************\r
- * the ffmpeg codec will be opened, some memory allocated. The vout is not yet\r
- * opened (done after the first decoded frame).\r
- *****************************************************************************/\r
-int E_(InitVideoDec)( decoder_t *p_dec, AVCodecContext *p_context,\r
- AVCodec *p_codec, int i_codec_id, char *psz_namecodec )\r
-{\r
- decoder_sys_t *p_sys;\r
- vlc_value_t lockval;\r
- vlc_value_t val;\r
-\r
- var_Get( p_dec->p_libvlc, "avcodec", &lockval );\r
-\r
- /* Allocate the memory needed to store the decoder's structure */\r
- if( ( p_dec->p_sys = p_sys =\r
- (decoder_sys_t *)malloc(sizeof(decoder_sys_t)) ) == NULL )\r
- {\r
- msg_Err( p_dec, "out of memory" );\r
- return VLC_EGENERIC;\r
- }\r
-\r
- p_dec->p_sys->p_context = p_context;\r
- p_dec->p_sys->p_codec = p_codec;\r
- p_dec->p_sys->i_codec_id = i_codec_id;\r
- p_dec->p_sys->psz_namecodec = psz_namecodec;\r
- p_sys->p_ff_pic = avcodec_alloc_frame();\r
-\r
- /* ***** Fill p_context with init values ***** */\r
- /* FIXME: remove when ffmpeg deals properly with avc1 */\r
- if( p_dec->fmt_in.i_codec != VLC_FOURCC('a','v','c','1') )\r
- /* End FIXME */\r
- p_sys->p_context->codec_tag = ffmpeg_CodecTag( p_dec->fmt_in.i_codec );\r
- p_sys->p_context->width = p_dec->fmt_in.video.i_width;\r
- p_sys->p_context->height = p_dec->fmt_in.video.i_height;\r
- p_sys->p_context->bits_per_sample = p_dec->fmt_in.video.i_bits_per_pixel;\r
-\r
- /* ***** Get configuration of ffmpeg plugin ***** */\r
- p_sys->p_context->workaround_bugs =\r
- config_GetInt( p_dec, "ffmpeg-workaround-bugs" );\r
- p_sys->p_context->error_resilience =\r
- config_GetInt( p_dec, "ffmpeg-error-resilience" );\r
-\r
- var_Create( p_dec, "grayscale", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );\r
- var_Get( p_dec, "grayscale", &val );\r
- if( val.b_bool ) p_sys->p_context->flags |= CODEC_FLAG_GRAY;\r
-\r
- var_Create( p_dec, "ffmpeg-vismv", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );\r
- var_Get( p_dec, "ffmpeg-vismv", &val );\r
-#if LIBAVCODEC_BUILD >= 4698\r
- if( val.i_int ) p_sys->p_context->debug_mv = val.i_int;\r
-#endif\r
-\r
- var_Create( p_dec, "ffmpeg-lowres", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );\r
- var_Get( p_dec, "ffmpeg-lowres", &val );\r
-#if LIBAVCODEC_BUILD >= 4723\r
- if( val.i_int > 0 && val.i_int <= 2 ) p_sys->p_context->lowres = val.i_int;\r
-#endif\r
-\r
- /* ***** ffmpeg frame skipping ***** */\r
- var_Create( p_dec, "ffmpeg-hurry-up", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );\r
- var_Get( p_dec, "ffmpeg-hurry-up", &val );\r
- p_sys->b_hurry_up = val.b_bool;\r
-\r
- /* ***** ffmpeg direct rendering ***** */\r
- p_sys->b_direct_rendering = 0;\r
- var_Create( p_dec, "ffmpeg-dr", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );\r
- var_Get( p_dec, "ffmpeg-dr", &val );\r
- if( val.b_bool && (p_sys->p_codec->capabilities & CODEC_CAP_DR1) &&\r
- ffmpeg_PixFmtToChroma( p_sys->p_context->pix_fmt ) &&\r
- /* Apparently direct rendering doesn't work with YUV422P */\r
- p_sys->p_context->pix_fmt != PIX_FMT_YUV422P &&\r
- /* H264 uses too many reference frames */\r
- p_sys->i_codec_id != CODEC_ID_H264 &&\r
- !(p_sys->p_context->width % 16) && !(p_sys->p_context->height % 16) &&\r
-#if LIBAVCODEC_BUILD >= 4698\r
- !p_sys->p_context->debug_mv )\r
-#else\r
- 1 )\r
-#endif\r
- {\r
- /* Some codecs set pix_fmt only after the 1st frame has been decoded,\r
- * so we need to do another check in ffmpeg_GetFrameBuf() */\r
- p_sys->b_direct_rendering = 1;\r
- }\r
-\r
-#ifdef LIBAVCODEC_PP\r
- p_sys->p_pp = NULL;\r
- p_sys->b_pp = p_sys->b_pp_async = p_sys->b_pp_init = VLC_FALSE;\r
- p_sys->p_pp = E_(OpenPostproc)( p_dec, &p_sys->b_pp_async );\r
-#endif\r
-\r
- /* ffmpeg doesn't properly release old pictures when frames are skipped */\r
- //if( p_sys->b_hurry_up ) p_sys->b_direct_rendering = 0;\r
- if( p_sys->b_direct_rendering )\r
- {\r
- msg_Dbg( p_dec, "using direct rendering" );\r
- p_sys->p_context->flags |= CODEC_FLAG_EMU_EDGE;\r
- }\r
-\r
- /* Always use our get_buffer wrapper so we can calculate the\r
- * PTS correctly */\r
- p_sys->p_context->get_buffer = ffmpeg_GetFrameBuf;\r
- p_sys->p_context->release_buffer = ffmpeg_ReleaseFrameBuf;\r
- p_sys->p_context->opaque = p_dec;\r
-\r
- /* ***** init this codec with special data ***** */\r
- if( p_dec->fmt_in.i_extra )\r
- {\r
- int i_size = p_dec->fmt_in.i_extra;\r
-\r
- if( p_sys->i_codec_id == CODEC_ID_SVQ3 )\r
- {\r
- uint8_t *p;\r
-\r
- p_sys->p_context->extradata_size = i_size + 12;\r
- p = p_sys->p_context->extradata =\r
- malloc( p_sys->p_context->extradata_size );\r
-\r
- memcpy( &p[0], "SVQ3", 4 );\r
- memset( &p[4], 0, 8 );\r
- memcpy( &p[12], p_dec->fmt_in.p_extra, i_size );\r
-\r
- /* Now remove all atoms before the SMI one */\r
- if( p_sys->p_context->extradata_size > 0x5a &&\r
- strncmp( &p[0x56], "SMI ", 4 ) )\r
- {\r
- uint8_t *psz = &p[0x52];\r
-\r
- while( psz < &p[p_sys->p_context->extradata_size - 8] )\r
- {\r
- int i_size = GetDWBE( psz );\r
- if( i_size <= 1 )\r
- {\r
- /* FIXME handle 1 as long size */\r
- break;\r
- }\r
- if( !strncmp( &psz[4], "SMI ", 4 ) )\r
- {\r
- memmove( &p[0x52], psz,\r
- &p[p_sys->p_context->extradata_size] - psz );\r
- break;\r
- }\r
-\r
- psz += i_size;\r
- }\r
- }\r
- }\r
- else if( p_dec->fmt_in.i_codec == VLC_FOURCC( 'R', 'V', '1', '0' ) ||\r
- p_dec->fmt_in.i_codec == VLC_FOURCC( 'R', 'V', '1', '3' ) ||\r
- p_dec->fmt_in.i_codec == VLC_FOURCC( 'R', 'V', '2', '0' ) )\r
- {\r
- if( p_dec->fmt_in.i_extra == 8 )\r
- {\r
- p_sys->p_context->extradata_size = 8;\r
- p_sys->p_context->extradata = malloc( 8 );\r
-\r
- memcpy( p_sys->p_context->extradata,\r
- p_dec->fmt_in.p_extra,\r
- p_dec->fmt_in.i_extra );\r
- p_sys->p_context->sub_id= ((uint32_t*)p_dec->fmt_in.p_extra)[1];\r
-\r
- msg_Warn( p_dec, "using extra data for RV codec sub_id=%08x",\r
- p_sys->p_context->sub_id );\r
- }\r
- }\r
- /* FIXME: remove when ffmpeg deals properly with avc1 */\r
- else if( p_dec->fmt_in.i_codec == VLC_FOURCC('a','v','c','1') )\r
- {\r
- ;\r
- }\r
- /* End FIXME */\r
- else\r
- {\r
- p_sys->p_context->extradata_size = i_size;\r
- p_sys->p_context->extradata =\r
- malloc( i_size + FF_INPUT_BUFFER_PADDING_SIZE );\r
- memcpy( p_sys->p_context->extradata,\r
- p_dec->fmt_in.p_extra, i_size );\r
- memset( &((uint8_t*)p_sys->p_context->extradata)[i_size],\r
- 0, FF_INPUT_BUFFER_PADDING_SIZE );\r
- }\r
- }\r
-\r
- /* ***** misc init ***** */\r
- p_sys->input_pts = p_sys->input_dts = 0;\r
- p_sys->i_pts = 0;\r
- p_sys->b_has_b_frames = VLC_FALSE;\r
- p_sys->b_first_frame = VLC_TRUE;\r
- p_sys->i_late_frames = 0;\r
- p_sys->i_buffer = 0;\r
- p_sys->i_buffer_orig = 1;\r
- p_sys->p_buffer_orig = p_sys->p_buffer = malloc( p_sys->i_buffer_orig );\r
-\r
- /* Set output properties */\r
- p_dec->fmt_out.i_cat = VIDEO_ES;\r
- p_dec->fmt_out.i_codec = ffmpeg_PixFmtToChroma( p_context->pix_fmt );\r
-\r
- /* Setup palette */\r
-#if LIBAVCODEC_BUILD >= 4688\r
- if( p_dec->fmt_in.video.p_palette )\r
- p_sys->p_context->palctrl =\r
- (AVPaletteControl *)p_dec->fmt_in.video.p_palette;\r
- else\r
- p_sys->p_context->palctrl = &palette_control;\r
-#endif\r
-\r
- /* ***** Open the codec ***** */\r
- vlc_mutex_lock( lockval.p_address );\r
- if( avcodec_open( p_sys->p_context, p_sys->p_codec ) < 0 )\r
- {\r
- vlc_mutex_unlock( lockval.p_address );\r
- msg_Err( p_dec, "cannot open codec (%s)", p_sys->psz_namecodec );\r
- free( p_sys );\r
- return VLC_EGENERIC;\r
- }\r
- vlc_mutex_unlock( lockval.p_address );\r
- msg_Dbg( p_dec, "ffmpeg codec (%s) started", p_sys->psz_namecodec );\r
-\r
-\r
- return VLC_SUCCESS;\r
-}\r
-\r
-/*****************************************************************************\r
- * DecodeVideo: Called to decode one or more frames\r
- *****************************************************************************/\r
-picture_t *E_(DecodeVideo)( decoder_t *p_dec, block_t **pp_block )\r
-{\r
- decoder_sys_t *p_sys = p_dec->p_sys;\r
- int b_drawpicture;\r
- int b_null_size = VLC_FALSE;\r
- block_t *p_block;\r
-\r
- if( !pp_block || !*pp_block ) return NULL;\r
-\r
- p_block = *pp_block;\r
-\r
- if( p_block->i_flags & (BLOCK_FLAG_DISCONTINUITY|BLOCK_FLAG_CORRUPTED) )\r
- {\r
- p_sys->i_buffer = 0;\r
- p_sys->i_pts = 0; /* To make sure we recover properly */\r
-\r
- p_sys->input_pts = p_sys->input_dts = 0;\r
- p_sys->i_late_frames = 0;\r
-\r
- block_Release( p_block );\r
- return NULL;\r
- }\r
-\r
- if( p_block->i_flags & BLOCK_FLAG_PREROLL )\r
- {\r
- /* Do not care about late frames when prerolling\r
- * TODO avoid decoding of non reference frame\r
- * (ie all B except for H264 where it depends only on nal_ref_idc) */\r
- p_sys->i_late_frames = 0;\r
- }\r
-\r
- if( !p_dec->b_pace_control && p_sys->i_late_frames > 0 &&\r
- mdate() - p_sys->i_late_frames_start > I64C(5000000) )\r
- {\r
- if( p_sys->i_pts )\r
- {\r
- msg_Err( p_dec, "more than 5 seconds of late video -> "\r
- "dropping frame (computer too slow ?)" );\r
- p_sys->i_pts = 0; /* To make sure we recover properly */\r
- }\r
- block_Release( p_block );\r
- p_sys->i_late_frames--;\r
- return NULL;\r
- }\r
-\r
- if( p_block->i_pts > 0 || p_block->i_dts > 0 )\r
- {\r
- p_sys->input_pts = p_block->i_pts;\r
- p_sys->input_dts = p_block->i_dts;\r
-\r
- /* Make sure we don't reuse the same timestamps twice */\r
- p_block->i_pts = p_block->i_dts = 0;\r
- }\r
-\r
- /* TODO implement it in a better way */\r
- /* A good idea could be to decode all I pictures and see for the other */\r
- if( !p_dec->b_pace_control &&\r
- p_sys->b_hurry_up && p_sys->i_late_frames > 4 )\r
- {\r
- b_drawpicture = 0;\r
- if( p_sys->i_late_frames < 8 )\r
- {\r
- p_sys->p_context->hurry_up = 2;\r
- }\r
- else\r
- {\r
- /* picture too late, won't decode\r
- * but break picture until a new I, and for mpeg4 ...*/\r
-\r
- p_sys->i_late_frames--; /* needed else it will never be decrease */\r
- block_Release( p_block );\r
- p_sys->i_buffer = 0;\r
- return NULL;\r
- }\r
- }\r
- else\r
- {\r
- if (!(p_block->i_flags & BLOCK_FLAG_PREROLL))\r
- {\r
- b_drawpicture = 1;\r
- p_sys->p_context->hurry_up = 0;\r
- }\r
- else\r
- {\r
- b_drawpicture = 0;\r
- p_sys->p_context->hurry_up = 1;\r
- }\r
- }\r
-\r
-\r
- if( p_sys->p_context->width <= 0 || p_sys->p_context->height <= 0 )\r
- {\r
- p_sys->p_context->hurry_up = 5;\r
- b_null_size = VLC_TRUE;\r
- }\r
-\r
- /*\r
- * Do the actual decoding now\r
- */\r
-\r
- /* Check if post-processing was enabled */\r
- p_sys->b_pp = p_sys->b_pp_async;\r
-\r
- /* Don't forget that ffmpeg requires a little more bytes\r
- * that the real frame size */\r
- if( p_block->i_buffer > 0 )\r
- {\r
- p_sys->i_buffer = p_block->i_buffer;\r
- if( p_sys->i_buffer + FF_INPUT_BUFFER_PADDING_SIZE >\r
- p_sys->i_buffer_orig )\r
- {\r
- free( p_sys->p_buffer_orig );\r
- p_sys->i_buffer_orig =\r
- p_block->i_buffer + FF_INPUT_BUFFER_PADDING_SIZE;\r
- p_sys->p_buffer_orig = malloc( p_sys->i_buffer_orig );\r
- }\r
- p_sys->p_buffer = p_sys->p_buffer_orig;\r
- p_sys->i_buffer = p_block->i_buffer;\r
- p_dec->p_vlc->pf_memcpy( p_sys->p_buffer, p_block->p_buffer,\r
- p_block->i_buffer );\r
- memset( p_sys->p_buffer + p_block->i_buffer, 0,\r
- FF_INPUT_BUFFER_PADDING_SIZE );\r
-\r
- p_block->i_buffer = 0;\r
- }\r
-\r
- while( p_sys->i_buffer > 0 )\r
- {\r
- int i_used, b_gotpicture;\r
- picture_t *p_pic;\r
-\r
- i_used = avcodec_decode_video( p_sys->p_context, p_sys->p_ff_pic,\r
- &b_gotpicture,\r
- p_sys->p_buffer, p_sys->i_buffer );\r
- if( b_null_size && p_sys->p_context->width > 0 &&\r
- p_sys->p_context->height > 0 )\r
- {\r
- /* Reparse it to not drop the I frame */\r
- b_null_size = VLC_FALSE;\r
- p_sys->p_context->hurry_up = 0;\r
- i_used = avcodec_decode_video( p_sys->p_context, p_sys->p_ff_pic,\r
- &b_gotpicture,\r
- p_sys->p_buffer, p_sys->i_buffer );\r
- }\r
-\r
- if( i_used < 0 )\r
- {\r
- msg_Warn( p_dec, "cannot decode one frame (%d bytes)",\r
- p_sys->i_buffer );\r
- block_Release( p_block );\r
- return NULL;\r
- }\r
- else if( i_used > p_sys->i_buffer )\r
- {\r
- i_used = p_sys->i_buffer;\r
- }\r
-\r
- /* Consumed bytes */\r
- p_sys->i_buffer -= i_used;\r
- p_sys->p_buffer += i_used;\r
-\r
- /* Nothing to display */\r
- if( !b_gotpicture )\r
- {\r
- if( i_used == 0 ) break;\r
- continue;\r
- }\r
-\r
- /* Update frame late count (except when doing preroll) */\r
- if( p_sys->i_pts && p_sys->i_pts <= mdate() &&\r
- !(p_block->i_flags & BLOCK_FLAG_PREROLL) )\r
- {\r
- p_sys->i_late_frames++;\r
- if( p_sys->i_late_frames == 1 )\r
- p_sys->i_late_frames_start = mdate();\r
- }\r
- else\r
- {\r
- p_sys->i_late_frames = 0;\r
- }\r
-\r
- if( !b_drawpicture || !p_sys->p_ff_pic->linesize[0] )\r
- {\r
- /* Do not display the picture */\r
- continue;\r
- }\r
-\r
- if( !p_sys->p_ff_pic->opaque )\r
- {\r
- /* Get a new picture */\r
- p_pic = ffmpeg_NewPictBuf( p_dec, p_sys->p_context );\r
- if( !p_pic )\r
- {\r
- block_Release( p_block );\r
- return NULL;\r
- }\r
-\r
- /* Fill p_picture_t from AVVideoFrame and do chroma conversion\r
- * if needed */\r
- ffmpeg_CopyPicture( p_dec, p_pic, p_sys->p_ff_pic );\r
- }\r
- else\r
- {\r
- p_pic = (picture_t *)p_sys->p_ff_pic->opaque;\r
- }\r
-\r
- /* Set the PTS */\r
- if( p_sys->p_ff_pic->pts ) p_sys->i_pts = p_sys->p_ff_pic->pts;\r
-\r
- /* Sanity check (seems to be needed for some streams ) */\r
- if( p_sys->p_ff_pic->pict_type == FF_B_TYPE )\r
- {\r
- p_sys->b_has_b_frames = VLC_TRUE;\r
- }\r
-\r
- /* Send decoded frame to vout */\r
- if( p_sys->i_pts )\r
- {\r
- p_pic->date = p_sys->i_pts;\r
-\r
- /* interpolate the next PTS */\r
- if( p_sys->p_context->frame_rate > 0 )\r
- {\r
- p_sys->i_pts += I64C(1000000) *\r
- (2 + p_sys->p_ff_pic->repeat_pict) *\r
- p_sys->p_context->frame_rate_base /\r
- (2 * p_sys->p_context->frame_rate);\r
- }\r
-\r
- if( p_sys->b_first_frame )\r
- {\r
- /* Hack to force display of still pictures */\r
- p_sys->b_first_frame = VLC_FALSE;\r
- p_pic->b_force = VLC_TRUE;\r
- }\r
-\r
- p_pic->i_nb_fields = 2 + p_sys->p_ff_pic->repeat_pict;\r
-#if LIBAVCODEC_BUILD >= 4685\r
- p_pic->b_progressive = !p_sys->p_ff_pic->interlaced_frame;\r
- p_pic->b_top_field_first = p_sys->p_ff_pic->top_field_first;\r
-#endif\r
-\r
- return p_pic;\r
- }\r
- else\r
- {\r
- p_dec->pf_vout_buffer_del( p_dec, p_pic );\r
- }\r
- }\r
-\r
- block_Release( p_block );\r
- return NULL;\r
-}\r
-\r
-/*****************************************************************************\r
- * EndVideo: decoder destruction\r
- *****************************************************************************\r
- * This function is called when the thread ends after a sucessful\r
- * initialization.\r
- *****************************************************************************/\r
-void E_(EndVideoDec)( decoder_t *p_dec )\r
-{\r
- decoder_sys_t *p_sys = p_dec->p_sys;\r
-\r
- if( p_sys->p_ff_pic ) av_free( p_sys->p_ff_pic );\r
-\r
-#ifdef LIBAVCODEC_PP\r
- E_(ClosePostproc)( p_dec, p_sys->p_pp );\r
-#endif\r
-\r
- free( p_sys->p_buffer_orig );\r
-}\r
-\r
-/*****************************************************************************\r
- * ffmpeg_CopyPicture: copy a picture from ffmpeg internal buffers to a\r
- * picture_t structure (when not in direct rendering mode).\r
- *****************************************************************************/\r
-static void ffmpeg_CopyPicture( decoder_t *p_dec,\r
- picture_t *p_pic, AVFrame *p_ff_pic )\r
-{\r
- decoder_sys_t *p_sys = p_dec->p_sys;\r
-\r
- if( ffmpeg_PixFmtToChroma( p_sys->p_context->pix_fmt ) )\r
- {\r
- int i_plane, i_size, i_line;\r
- uint8_t *p_dst, *p_src;\r
- int i_src_stride, i_dst_stride;\r
-\r
-#ifdef LIBAVCODEC_PP\r
- if( p_sys->p_pp && p_sys->b_pp )\r
- E_(PostprocPict)( p_dec, p_sys->p_pp, p_pic, p_ff_pic );\r
- else\r
-#endif\r
- for( i_plane = 0; i_plane < p_pic->i_planes; i_plane++ )\r
- {\r
- p_src = p_ff_pic->data[i_plane];\r
- p_dst = p_pic->p[i_plane].p_pixels;\r
- i_src_stride = p_ff_pic->linesize[i_plane];\r
- i_dst_stride = p_pic->p[i_plane].i_pitch;\r
-\r
- i_size = __MIN( i_src_stride, i_dst_stride );\r
- for( i_line = 0; i_line < p_pic->p[i_plane].i_visible_lines;\r
- i_line++ )\r
- {\r
- p_dec->p_vlc->pf_memcpy( p_dst, p_src, i_size );\r
- p_src += i_src_stride;\r
- p_dst += i_dst_stride;\r
- }\r
- }\r
- }\r
- else\r
- {\r
- AVPicture dest_pic;\r
- int i;\r
-\r
- /* we need to convert to I420 */\r
- switch( p_sys->p_context->pix_fmt )\r
- {\r
- case PIX_FMT_YUV410P:\r
- case PIX_FMT_YUV411P:\r
- case PIX_FMT_PAL8:\r
- for( i = 0; i < p_pic->i_planes; i++ )\r
- {\r
- dest_pic.data[i] = p_pic->p[i].p_pixels;\r
- dest_pic.linesize[i] = p_pic->p[i].i_pitch;\r
- }\r
- img_convert( &dest_pic, PIX_FMT_YUV420P,\r
- (AVPicture *)p_ff_pic,\r
- p_sys->p_context->pix_fmt,\r
- p_sys->p_context->width,\r
- p_sys->p_context->height );\r
- break;\r
- default:\r
- msg_Err( p_dec, "don't know how to convert chroma %i",\r
- p_sys->p_context->pix_fmt );\r
- p_dec->b_error = 1;\r
- break;\r
- }\r
- }\r
-}\r
-\r
-/*****************************************************************************\r
- * ffmpeg_GetFrameBuf: callback used by ffmpeg to get a frame buffer.\r
- *****************************************************************************\r
- * It is used for direct rendering as well as to get the right PTS for each\r
- * decoded picture (even in indirect rendering mode).\r
- *****************************************************************************/\r
-static int ffmpeg_GetFrameBuf( struct AVCodecContext *p_context,\r
- AVFrame *p_ff_pic )\r
-{\r
- decoder_t *p_dec = (decoder_t *)p_context->opaque;\r
- decoder_sys_t *p_sys = p_dec->p_sys;\r
- picture_t *p_pic;\r
-\r
- /* Set picture PTS */\r
- if( p_sys->input_pts )\r
- {\r
- p_ff_pic->pts = p_sys->input_pts;\r
- }\r
- else if( p_sys->input_dts )\r
- {\r
- /* Some demuxers only set the dts so let's try to find a useful\r
- * timestamp from this */\r
- if( !p_context->has_b_frames || !p_sys->b_has_b_frames ||\r
- !p_ff_pic->reference || !p_sys->i_pts )\r
- {\r
- p_ff_pic->pts = p_sys->input_dts;\r
- }\r
- else p_ff_pic->pts = 0;\r
- }\r
- else p_ff_pic->pts = 0;\r
-\r
- if( p_sys->i_pts ) /* make sure 1st frame has a pts > 0 */\r
- {\r
- p_sys->input_pts = p_sys->input_dts = 0;\r
- }\r
-\r
- p_ff_pic->opaque = 0;\r
-\r
- /* Not much to do in indirect rendering mode */\r
- if( !p_sys->b_direct_rendering || p_sys->b_pp )\r
- {\r
- return avcodec_default_get_buffer( p_context, p_ff_pic );\r
- }\r
-\r
- /* Some codecs set pix_fmt only after the 1st frame has been decoded,\r
- * so this check is necessary. */\r
- if( !ffmpeg_PixFmtToChroma( p_context->pix_fmt ) ||\r
- p_sys->p_context->width % 16 || p_sys->p_context->height % 16 )\r
- {\r
- msg_Dbg( p_dec, "disabling direct rendering" );\r
- p_sys->b_direct_rendering = 0;\r
- return avcodec_default_get_buffer( p_context, p_ff_pic );\r
- }\r
-\r
- /* Get a new picture */\r
- //p_sys->p_vout->render.b_allow_modify_pics = 0;\r
- p_pic = ffmpeg_NewPictBuf( p_dec, p_sys->p_context );\r
- if( !p_pic )\r
- {\r
- p_sys->b_direct_rendering = 0;\r
- return avcodec_default_get_buffer( p_context, p_ff_pic );\r
- }\r
- p_sys->p_context->draw_horiz_band = NULL;\r
-\r
- p_ff_pic->opaque = (void*)p_pic;\r
- p_ff_pic->type = FF_BUFFER_TYPE_USER;\r
- p_ff_pic->data[0] = p_pic->p[0].p_pixels;\r
- p_ff_pic->data[1] = p_pic->p[1].p_pixels;\r
- p_ff_pic->data[2] = p_pic->p[2].p_pixels;\r
- p_ff_pic->data[3] = NULL; /* alpha channel but I'm not sure */\r
-\r
- p_ff_pic->linesize[0] = p_pic->p[0].i_pitch;\r
- p_ff_pic->linesize[1] = p_pic->p[1].i_pitch;\r
- p_ff_pic->linesize[2] = p_pic->p[2].i_pitch;\r
- p_ff_pic->linesize[3] = 0;\r
-\r
- if( p_ff_pic->reference != 0 )\r
- {\r
- p_dec->pf_picture_link( p_dec, p_pic );\r
- }\r
-\r
- /* FIXME what is that, should give good value */\r
- p_ff_pic->age = 256*256*256*64; // FIXME FIXME from ffmpeg\r
-\r
- return 0;\r
-}\r
-\r
-static void ffmpeg_ReleaseFrameBuf( struct AVCodecContext *p_context,\r
- AVFrame *p_ff_pic )\r
-{\r
- decoder_t *p_dec = (decoder_t *)p_context->opaque;\r
- picture_t *p_pic;\r
-\r
- if( !p_ff_pic->opaque )\r
- {\r
- avcodec_default_release_buffer( p_context, p_ff_pic );\r
- return;\r
- }\r
-\r
- p_pic = (picture_t*)p_ff_pic->opaque;\r
-\r
- p_ff_pic->data[0] = NULL;\r
- p_ff_pic->data[1] = NULL;\r
- p_ff_pic->data[2] = NULL;\r
- p_ff_pic->data[3] = NULL;\r
-\r
- if( p_ff_pic->reference != 0 )\r
- {\r
- p_dec->pf_picture_unlink( p_dec, p_pic );\r
- }\r
-}\r
+/*****************************************************************************
+ * video.c: video decoder using the ffmpeg library
+ *****************************************************************************
+ * Copyright (C) 1999-2001 the VideoLAN team
+ * $Id$
+ *
+ * Authors: Laurent Aimar <fenrir@via.ecp.fr>
+ * Gildas Bazin <gbazin@videolan.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
+ *****************************************************************************/
+
+/*****************************************************************************
+ * Preamble
+ *****************************************************************************/
+#include <vlc/vlc.h>
+#include <vlc_codec.h>
+#include <vlc_vout.h>
+#include <vlc_input.h> /* hmmm, just for INPUT_RATE_DEFAULT */
+
+/* ffmpeg header */
+#ifdef HAVE_FFMPEG_AVCODEC_H
+# include <ffmpeg/avcodec.h>
+#else
+# include <avcodec.h>
+#endif
+
+#include "ffmpeg.h"
+
+/*****************************************************************************
+ * decoder_sys_t : decoder descriptor
+ *****************************************************************************/
+struct decoder_sys_t
+{
+ FFMPEG_COMMON_MEMBERS
+
+ /* Video decoder specific part */
+ mtime_t input_pts;
+ mtime_t input_dts;
+ mtime_t i_pts;
+
+ AVFrame *p_ff_pic;
+ BITMAPINFOHEADER *p_format;
+
+ /* for frame skipping algo */
+ int b_hurry_up;
+ enum AVDiscard i_skip_frame;
+ enum AVDiscard i_skip_idct;
+
+ /* how many decoded frames are late */
+ int i_late_frames;
+ mtime_t i_late_frames_start;
+
+ /* for direct rendering */
+ int b_direct_rendering;
+
+ vlc_bool_t b_has_b_frames;
+
+ /* Hack to force display of still pictures */
+ vlc_bool_t b_first_frame;
+
+ int i_buffer_orig, i_buffer;
+ char *p_buffer_orig, *p_buffer;
+
+ /* Postprocessing handle */
+ void *p_pp;
+ vlc_bool_t b_pp;
+ vlc_bool_t b_pp_async;
+ vlc_bool_t b_pp_init;
+};
+
+/* FIXME (dummy palette for now) */
+static AVPaletteControl palette_control;
+
+/*****************************************************************************
+ * Local prototypes
+ *****************************************************************************/
+static void ffmpeg_InitCodec ( decoder_t * );
+static void ffmpeg_CopyPicture ( decoder_t *, picture_t *, AVFrame * );
+static int ffmpeg_GetFrameBuf ( struct AVCodecContext *, AVFrame * );
+static void ffmpeg_ReleaseFrameBuf( struct AVCodecContext *, AVFrame * );
+
+static uint32_t ffmpeg_CodecTag( vlc_fourcc_t fcc )
+{
+ uint8_t *p = (uint8_t*)&fcc;
+ return p[0] | (p[1] << 8) | (p[2] << 16) | (p[3] << 24);
+}
+
+/*****************************************************************************
+ * Local Functions
+ *****************************************************************************/
+static uint32_t ffmpeg_PixFmtToChroma( int i_ff_chroma )
+{
+ switch( i_ff_chroma )
+ {
+ case PIX_FMT_YUV420P:
+ case PIX_FMT_YUVJ420P: /* Hacky but better then chroma conversion */
+ return VLC_FOURCC('I','4','2','0');
+ case PIX_FMT_YUV422P:
+ case PIX_FMT_YUVJ422P: /* Hacky but better then chroma conversion */
+ return VLC_FOURCC('I','4','2','2');
+ case PIX_FMT_YUV444P:
+ case PIX_FMT_YUVJ444P: /* Hacky but better then chroma conversion */
+ return VLC_FOURCC('I','4','4','4');
+
+ case PIX_FMT_YUV422:
+ return VLC_FOURCC('Y','U','Y','2');
+
+ case PIX_FMT_RGB555:
+ return VLC_FOURCC('R','V','1','5');
+ case PIX_FMT_RGB565:
+ return VLC_FOURCC('R','V','1','6');
+ case PIX_FMT_RGB24:
+ return VLC_FOURCC('R','V','2','4');
+ case PIX_FMT_RGBA32:
+ return VLC_FOURCC('R','V','3','2');
+#if defined(HAVE_FFMPEG_SWSCALE_H) || defined(HAVE_LIBSWSCALE_TREE)
+ case PIX_FMT_RGBA:
+ return VLC_FOURCC('R','G','B','A');
+#endif
+ case PIX_FMT_GRAY8:
+ return VLC_FOURCC('G','R','E','Y');
+
+ case PIX_FMT_YUV410P:
+ case PIX_FMT_YUV411P:
+ case PIX_FMT_BGR24:
+ default:
+ return 0;
+ }
+}
+
+/* Returns a new picture buffer */
+static inline picture_t *ffmpeg_NewPictBuf( decoder_t *p_dec,
+ AVCodecContext *p_context )
+{
+ decoder_sys_t *p_sys = p_dec->p_sys;
+ picture_t *p_pic;
+
+ p_dec->fmt_out.video.i_width = p_context->width;
+ p_dec->fmt_out.video.i_height = p_context->height;
+ p_dec->fmt_out.i_codec = ffmpeg_PixFmtToChroma( p_context->pix_fmt );
+
+ if( !p_context->width || !p_context->height )
+ {
+ return NULL; /* invalid display size */
+ }
+
+ if( !p_dec->fmt_out.i_codec )
+ {
+ /* we make conversion if possible*/
+ p_dec->fmt_out.i_codec = VLC_FOURCC('I','4','2','0');
+ }
+
+ /* If an aspect-ratio was specified in the input format then force it */
+ if( p_dec->fmt_in.video.i_aspect )
+ {
+ p_dec->fmt_out.video.i_aspect = p_dec->fmt_in.video.i_aspect;
+ }
+ else
+ {
+ p_dec->fmt_out.video.i_aspect =
+ VOUT_ASPECT_FACTOR * ( av_q2d(p_context->sample_aspect_ratio) *
+ p_context->width / p_context->height );
+ p_dec->fmt_out.video.i_sar_num = p_context->sample_aspect_ratio.num;
+ p_dec->fmt_out.video.i_sar_den = p_context->sample_aspect_ratio.den;
+
+ if( p_dec->fmt_out.video.i_aspect == 0 )
+ {
+ p_dec->fmt_out.video.i_aspect =
+ VOUT_ASPECT_FACTOR * p_context->width / p_context->height;
+ }
+ }
+
+ if( p_dec->fmt_out.video.i_frame_rate > 0 &&
+ p_dec->fmt_out.video.i_frame_rate_base > 0 )
+ {
+ p_dec->fmt_out.video.i_frame_rate =
+ p_dec->fmt_in.video.i_frame_rate;
+ p_dec->fmt_out.video.i_frame_rate_base =
+ p_dec->fmt_in.video.i_frame_rate_base;
+ }
+ else if( p_context->time_base.num > 0 && p_context->time_base.den > 0 )
+ {
+ p_dec->fmt_out.video.i_frame_rate = p_context->time_base.den;
+ p_dec->fmt_out.video.i_frame_rate_base = p_context->time_base.num;
+ }
+
+ p_pic = p_dec->pf_vout_buffer_new( p_dec );
+
+ if( p_sys->p_pp && p_sys->b_pp && !p_sys->b_pp_init )
+ {
+ E_(InitPostproc)( p_dec, p_sys->p_pp, p_context->width,
+ p_context->height, p_context->pix_fmt );
+ p_sys->b_pp_init = VLC_TRUE;
+ }
+
+ return p_pic;
+}
+
+/*****************************************************************************
+ * InitVideo: initialize the video decoder
+ *****************************************************************************
+ * the ffmpeg codec will be opened, some memory allocated. The vout is not yet
+ * opened (done after the first decoded frame).
+ *****************************************************************************/
+int E_(InitVideoDec)( decoder_t *p_dec, AVCodecContext *p_context,
+ AVCodec *p_codec, int i_codec_id, const char *psz_namecodec )
+{
+ decoder_sys_t *p_sys;
+ vlc_value_t val;
+
+ /* Allocate the memory needed to store the decoder's structure */
+ if( ( p_dec->p_sys = p_sys =
+ (decoder_sys_t *)malloc(sizeof(decoder_sys_t)) ) == NULL )
+ {
+ msg_Err( p_dec, "out of memory" );
+ return VLC_ENOMEM;
+ }
+ memset( p_sys, 0, sizeof(decoder_sys_t) );
+
+ p_dec->p_sys->p_context = p_context;
+ p_dec->p_sys->p_codec = p_codec;
+ p_dec->p_sys->i_codec_id = i_codec_id;
+ p_dec->p_sys->psz_namecodec = psz_namecodec;
+ p_sys->p_ff_pic = avcodec_alloc_frame();
+
+ /* ***** Fill p_context with init values ***** */
+ p_sys->p_context->codec_tag = ffmpeg_CodecTag( p_dec->fmt_in.i_codec );
+ p_sys->p_context->width = p_dec->fmt_in.video.i_width;
+ p_sys->p_context->height = p_dec->fmt_in.video.i_height;
+ p_sys->p_context->bits_per_sample = p_dec->fmt_in.video.i_bits_per_pixel;
+
+ /* ***** Get configuration of ffmpeg plugin ***** */
+ p_sys->p_context->workaround_bugs =
+ config_GetInt( p_dec, "ffmpeg-workaround-bugs" );
+ p_sys->p_context->error_resilience =
+ config_GetInt( p_dec, "ffmpeg-error-resilience" );
+
+ var_Create( p_dec, "grayscale", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
+ var_Get( p_dec, "grayscale", &val );
+ if( val.b_bool ) p_sys->p_context->flags |= CODEC_FLAG_GRAY;
+
+ var_Create( p_dec, "ffmpeg-vismv", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
+ var_Get( p_dec, "ffmpeg-vismv", &val );
+ if( val.i_int ) p_sys->p_context->debug_mv = val.i_int;
+
+ var_Create( p_dec, "ffmpeg-lowres", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
+ var_Get( p_dec, "ffmpeg-lowres", &val );
+ if( val.i_int > 0 && val.i_int <= 2 ) p_sys->p_context->lowres = val.i_int;
+
+ var_Create( p_dec, "ffmpeg-skiploopfilter",
+ VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
+ var_Get( p_dec, "ffmpeg-skiploopfilter", &val );
+ if( val.i_int > 0 ) p_sys->p_context->skip_loop_filter = AVDISCARD_NONREF;
+ if( val.i_int > 1 ) p_sys->p_context->skip_loop_filter = AVDISCARD_BIDIR;
+ if( val.i_int > 2 ) p_sys->p_context->skip_loop_filter = AVDISCARD_NONKEY;
+ if( val.i_int > 3 ) p_sys->p_context->skip_loop_filter = AVDISCARD_ALL;
+
+ /* ***** ffmpeg frame skipping ***** */
+ var_Create( p_dec, "ffmpeg-hurry-up", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
+ var_Get( p_dec, "ffmpeg-hurry-up", &val );
+ p_sys->b_hurry_up = val.b_bool;
+
+ var_Create( p_dec, "ffmpeg-skip-frame", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
+ var_Get( p_dec, "ffmpeg-skip-frame", &val );
+ switch( val.i_int )
+ {
+ case -1:
+ p_sys->p_context->skip_frame = AVDISCARD_NONE;
+ break;
+ case 0:
+ p_sys->p_context->skip_frame = AVDISCARD_DEFAULT;
+ break;
+ case 1:
+ p_sys->p_context->skip_frame = AVDISCARD_BIDIR;
+ break;
+ case 2:
+ p_sys->p_context->skip_frame = AVDISCARD_NONKEY;
+ break;
+ case 3:
+ p_sys->p_context->skip_frame = AVDISCARD_ALL;
+ break;
+ default:
+ p_sys->p_context->skip_frame = AVDISCARD_NONE;
+ break;
+ }
+ p_sys->i_skip_frame = p_sys->p_context->skip_frame;
+
+ var_Create( p_dec, "ffmpeg-skip-idct", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
+ var_Get( p_dec, "ffmpeg-skip-idct", &val );
+ switch( val.i_int )
+ {
+ case -1:
+ p_sys->p_context->skip_idct = AVDISCARD_NONE;
+ break;
+ case 0:
+ p_sys->p_context->skip_idct = AVDISCARD_DEFAULT;
+ break;
+ case 1:
+ p_sys->p_context->skip_idct = AVDISCARD_BIDIR;
+ break;
+ case 2:
+ p_sys->p_context->skip_idct = AVDISCARD_NONKEY;
+ break;
+ case 3:
+ p_sys->p_context->skip_idct = AVDISCARD_ALL;
+ break;
+ default:
+ p_sys->p_context->skip_idct = AVDISCARD_NONE;
+ break;
+ }
+ p_sys->i_skip_idct = p_sys->p_context->skip_idct;
+
+ /* ***** ffmpeg direct rendering ***** */
+ p_sys->b_direct_rendering = 0;
+ var_Create( p_dec, "ffmpeg-dr", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
+ var_Get( p_dec, "ffmpeg-dr", &val );
+ if( val.b_bool && (p_sys->p_codec->capabilities & CODEC_CAP_DR1) &&
+ /* Apparently direct rendering doesn't work with YUV422P */
+ p_sys->p_context->pix_fmt != PIX_FMT_YUV422P &&
+ /* H264 uses too many reference frames */
+ p_sys->i_codec_id != CODEC_ID_H264 &&
+ !p_sys->p_context->debug_mv )
+ {
+ /* Some codecs set pix_fmt only after the 1st frame has been decoded,
+ * so we need to do another check in ffmpeg_GetFrameBuf() */
+ p_sys->b_direct_rendering = 1;
+ }
+
+ p_sys->p_pp = NULL;
+ p_sys->b_pp = p_sys->b_pp_async = p_sys->b_pp_init = VLC_FALSE;
+ p_sys->p_pp = E_(OpenPostproc)( p_dec, &p_sys->b_pp_async );
+
+ /* ffmpeg doesn't properly release old pictures when frames are skipped */
+ //if( p_sys->b_hurry_up ) p_sys->b_direct_rendering = 0;
+ if( p_sys->b_direct_rendering )
+ {
+ msg_Dbg( p_dec, "using direct rendering" );
+ p_sys->p_context->flags |= CODEC_FLAG_EMU_EDGE;
+ }
+
+ /* Always use our get_buffer wrapper so we can calculate the
+ * PTS correctly */
+ p_sys->p_context->get_buffer = ffmpeg_GetFrameBuf;
+ p_sys->p_context->release_buffer = ffmpeg_ReleaseFrameBuf;
+ p_sys->p_context->opaque = p_dec;
+
+ /* ***** init this codec with special data ***** */
+ ffmpeg_InitCodec( p_dec );
+
+ /* ***** misc init ***** */
+ p_sys->input_pts = p_sys->input_dts = 0;
+ p_sys->i_pts = 0;
+ p_sys->b_has_b_frames = VLC_FALSE;
+ p_sys->b_first_frame = VLC_TRUE;
+ p_sys->i_late_frames = 0;
+ p_sys->i_buffer = 0;
+ p_sys->i_buffer_orig = 1;
+ p_sys->p_buffer_orig = p_sys->p_buffer = malloc( p_sys->i_buffer_orig );
+
+ /* Set output properties */
+ p_dec->fmt_out.i_cat = VIDEO_ES;
+ p_dec->fmt_out.i_codec = ffmpeg_PixFmtToChroma( p_context->pix_fmt );
+
+ /* Setup palette */
+ if( p_dec->fmt_in.video.p_palette )
+ p_sys->p_context->palctrl =
+ (AVPaletteControl *)p_dec->fmt_in.video.p_palette;
+ else
+ p_sys->p_context->palctrl = &palette_control;
+
+ /* ***** Open the codec ***** */
+ vlc_mutex_t *lock = var_AcquireMutex( "avcodec" );
+ if( lock == NULL )
+ {
+ free( p_sys );
+ return VLC_ENOMEM;
+ }
+
+ if( avcodec_open( p_sys->p_context, p_sys->p_codec ) < 0 )
+ {
+ vlc_mutex_unlock( lock );
+ msg_Err( p_dec, "cannot open codec (%s)", p_sys->psz_namecodec );
+ free( p_sys );
+ return VLC_EGENERIC;
+ }
+ vlc_mutex_unlock( lock );
+ msg_Dbg( p_dec, "ffmpeg codec (%s) started", p_sys->psz_namecodec );
+
+
+ return VLC_SUCCESS;
+}
+
+/*****************************************************************************
+ * DecodeVideo: Called to decode one or more frames
+ *****************************************************************************/
+picture_t *E_(DecodeVideo)( decoder_t *p_dec, block_t **pp_block )
+{
+ decoder_sys_t *p_sys = p_dec->p_sys;
+ int b_drawpicture;
+ int b_null_size = VLC_FALSE;
+ block_t *p_block;
+
+ if( !pp_block || !*pp_block ) return NULL;
+
+ if( !p_sys->p_context->extradata_size && p_dec->fmt_in.i_extra )
+ ffmpeg_InitCodec( p_dec );
+
+ p_block = *pp_block;
+
+ if( p_block->i_flags & (BLOCK_FLAG_DISCONTINUITY|BLOCK_FLAG_CORRUPTED) )
+ {
+ p_sys->i_buffer = 0;
+ p_sys->i_pts = 0; /* To make sure we recover properly */
+
+ p_sys->input_pts = p_sys->input_dts = 0;
+ p_sys->i_late_frames = 0;
+
+ block_Release( p_block );
+
+ //if( p_block->i_flags & BLOCK_FLAG_CORRUPTED )
+ //avcodec_flush_buffers( p_sys->p_context );
+ return NULL;
+ }
+
+ if( p_block->i_flags & BLOCK_FLAG_PREROLL )
+ {
+ /* Do not care about late frames when prerolling
+ * TODO avoid decoding of non reference frame
+ * (ie all B except for H264 where it depends only on nal_ref_idc) */
+ p_sys->i_late_frames = 0;
+ }
+
+ if( !p_dec->b_pace_control && (p_sys->i_late_frames > 0) &&
+ (mdate() - p_sys->i_late_frames_start > I64C(5000000)) )
+ {
+ if( p_sys->i_pts )
+ {
+ msg_Err( p_dec, "more than 5 seconds of late video -> "
+ "dropping frame (computer too slow ?)" );
+ p_sys->i_pts = 0; /* To make sure we recover properly */
+ }
+ block_Release( p_block );
+ p_sys->i_late_frames--;
+ return NULL;
+ }
+
+ if( p_block->i_pts > 0 || p_block->i_dts > 0 )
+ {
+ p_sys->input_pts = p_block->i_pts;
+ p_sys->input_dts = p_block->i_dts;
+
+ /* Make sure we don't reuse the same timestamps twice */
+ p_block->i_pts = p_block->i_dts = 0;
+ }
+
+ /* A good idea could be to decode all I pictures and see for the other */
+ if( !p_dec->b_pace_control &&
+ p_sys->b_hurry_up &&
+ (p_sys->i_late_frames > 4) )
+ {
+ b_drawpicture = 0;
+ if( p_sys->i_late_frames < 8 )
+ {
+ p_sys->p_context->skip_frame =
+ (p_sys->i_skip_frame <= AVDISCARD_BIDIR) ?
+ AVDISCARD_BIDIR : p_sys->i_skip_frame;
+ }
+ else
+ {
+ /* picture too late, won't decode
+ * but break picture until a new I, and for mpeg4 ...*/
+ p_sys->i_late_frames--; /* needed else it will never be decrease */
+ block_Release( p_block );
+ p_sys->i_buffer = 0;
+ return NULL;
+ }
+ }
+ else
+ {
+ if( p_sys->b_hurry_up )
+ p_sys->p_context->skip_frame = p_sys->i_skip_frame;
+ if( !(p_block->i_flags & BLOCK_FLAG_PREROLL) )
+ b_drawpicture = 1;
+ else
+ b_drawpicture = 0;
+ }
+
+ if( p_sys->p_context->width <= 0 || p_sys->p_context->height <= 0 )
+ {
+ if( p_sys->b_hurry_up )
+ p_sys->p_context->skip_frame = p_sys->i_skip_frame;
+ b_null_size = VLC_TRUE;
+ }
+
+ /*
+ * Do the actual decoding now
+ */
+
+ /* Check if post-processing was enabled */
+ p_sys->b_pp = p_sys->b_pp_async;
+
+ /* Don't forget that ffmpeg requires a little more bytes
+ * that the real frame size */
+ if( p_block->i_buffer > 0 )
+ {
+ p_sys->i_buffer = p_block->i_buffer;
+ if( p_sys->i_buffer + FF_INPUT_BUFFER_PADDING_SIZE >
+ p_sys->i_buffer_orig )
+ {
+ free( p_sys->p_buffer_orig );
+ p_sys->i_buffer_orig =
+ p_block->i_buffer + FF_INPUT_BUFFER_PADDING_SIZE;
+ p_sys->p_buffer_orig = malloc( p_sys->i_buffer_orig );
+ }
+ p_sys->p_buffer = p_sys->p_buffer_orig;
+ p_sys->i_buffer = p_block->i_buffer;
+ p_dec->p_libvlc->pf_memcpy( p_sys->p_buffer, p_block->p_buffer,
+ p_block->i_buffer );
+ memset( p_sys->p_buffer + p_block->i_buffer, 0,
+ FF_INPUT_BUFFER_PADDING_SIZE );
+
+ p_block->i_buffer = 0;
+ }
+
+ while( p_sys->i_buffer > 0 )
+ {
+ int i_used, b_gotpicture;
+ picture_t *p_pic;
+
+ i_used = avcodec_decode_video( p_sys->p_context, p_sys->p_ff_pic,
+ &b_gotpicture,
+ (uint8_t*)p_sys->p_buffer, p_sys->i_buffer );
+ if( b_null_size && p_sys->p_context->width > 0 &&
+ p_sys->p_context->height > 0 )
+ {
+ /* Reparse it to not drop the I frame */
+ b_null_size = VLC_FALSE;
+ if( p_sys->b_hurry_up )
+ p_sys->p_context->skip_frame = p_sys->i_skip_frame;
+ i_used = avcodec_decode_video( p_sys->p_context, p_sys->p_ff_pic,
+ &b_gotpicture,
+ (uint8_t*)p_sys->p_buffer, p_sys->i_buffer );
+ }
+
+ if( i_used < 0 )
+ {
+ msg_Warn( p_dec, "cannot decode one frame (%d bytes)",
+ p_sys->i_buffer );
+ block_Release( p_block );
+ return NULL;
+ }
+ else if( i_used > p_sys->i_buffer )
+ {
+ i_used = p_sys->i_buffer;
+ }
+
+ /* Consumed bytes */
+ p_sys->i_buffer -= i_used;
+ p_sys->p_buffer += i_used;
+
+ /* Nothing to display */
+ if( !b_gotpicture )
+ {
+ if( i_used == 0 ) break;
+ continue;
+ }
+
+ /* Update frame late count (except when doing preroll) */
+ if( p_sys->i_pts && decoder_GetDisplayDate(p_dec, p_sys->i_pts) <= mdate() &&
+ !(p_block->i_flags & BLOCK_FLAG_PREROLL) )
+ {
+ p_sys->i_late_frames++;
+ if( p_sys->i_late_frames == 1 )
+ p_sys->i_late_frames_start = mdate();
+ }
+ else
+ {
+ p_sys->i_late_frames = 0;
+ }
+
+ if( !b_drawpicture || !p_sys->p_ff_pic->linesize[0] )
+ {
+ /* Do not display the picture */
+ p_pic = (picture_t *)p_sys->p_ff_pic->opaque;
+ if( !b_drawpicture && p_pic )
+ p_dec->pf_vout_buffer_del( p_dec, p_pic );
+ continue;
+ }
+
+ if( !p_sys->p_ff_pic->opaque )
+ {
+ /* Get a new picture */
+ p_pic = ffmpeg_NewPictBuf( p_dec, p_sys->p_context );
+ if( !p_pic )
+ {
+ block_Release( p_block );
+ return NULL;
+ }
+
+ /* Fill p_picture_t from AVVideoFrame and do chroma conversion
+ * if needed */
+ ffmpeg_CopyPicture( p_dec, p_pic, p_sys->p_ff_pic );
+ }
+ else
+ {
+ p_pic = (picture_t *)p_sys->p_ff_pic->opaque;
+ }
+
+ /* Set the PTS */
+ if( p_sys->p_ff_pic->pts ) p_sys->i_pts = p_sys->p_ff_pic->pts;
+
+ /* Sanity check (seems to be needed for some streams) */
+ if( p_sys->p_ff_pic->pict_type == FF_B_TYPE )
+ {
+ p_sys->b_has_b_frames = VLC_TRUE;
+ }
+
+ if( !p_dec->fmt_in.video.i_aspect )
+ {
+ /* Fetch again the aspect ratio in case it changed */
+ p_dec->fmt_out.video.i_aspect =
+ VOUT_ASPECT_FACTOR
+ * ( av_q2d(p_sys->p_context->sample_aspect_ratio)
+ * p_sys->p_context->width / p_sys->p_context->height );
+ p_dec->fmt_out.video.i_sar_num
+ = p_sys->p_context->sample_aspect_ratio.num;
+ p_dec->fmt_out.video.i_sar_den
+ = p_sys->p_context->sample_aspect_ratio.den;
+
+ if( p_dec->fmt_out.video.i_aspect == 0 )
+ {
+ p_dec->fmt_out.video.i_aspect = VOUT_ASPECT_FACTOR
+ * p_sys->p_context->width / p_sys->p_context->height;
+ }
+ }
+
+ /* Send decoded frame to vout */
+ if( p_sys->i_pts )
+ {
+ p_pic->date = p_sys->i_pts;
+
+ /* interpolate the next PTS */
+ if( p_dec->fmt_in.video.i_frame_rate > 0 &&
+ p_dec->fmt_in.video.i_frame_rate_base > 0 )
+ {
+ p_sys->i_pts += I64C(1000000) *
+ (2 + p_sys->p_ff_pic->repeat_pict) *
+ p_dec->fmt_in.video.i_frame_rate_base *
+ p_block->i_rate / INPUT_RATE_DEFAULT /
+ (2 * p_dec->fmt_in.video.i_frame_rate);
+ }
+ else if( p_sys->p_context->time_base.den > 0 )
+ {
+ p_sys->i_pts += I64C(1000000) *
+ (2 + p_sys->p_ff_pic->repeat_pict) *
+ p_sys->p_context->time_base.num *
+ p_block->i_rate / INPUT_RATE_DEFAULT /
+ (2 * p_sys->p_context->time_base.den);
+ }
+
+ if( p_sys->b_first_frame )
+ {
+ /* Hack to force display of still pictures */
+ p_sys->b_first_frame = VLC_FALSE;
+ p_pic->b_force = VLC_TRUE;
+ }
+
+ p_pic->i_nb_fields = 2 + p_sys->p_ff_pic->repeat_pict;
+ p_pic->b_progressive = !p_sys->p_ff_pic->interlaced_frame;
+ p_pic->b_top_field_first = p_sys->p_ff_pic->top_field_first;
+
+ return p_pic;
+ }
+ else
+ {
+ p_dec->pf_vout_buffer_del( p_dec, p_pic );
+ }
+ }
+
+ block_Release( p_block );
+ return NULL;
+}
+
+/*****************************************************************************
+ * EndVideo: decoder destruction
+ *****************************************************************************
+ * This function is called when the thread ends after a successful
+ * initialization.
+ *****************************************************************************/
+void E_(EndVideoDec)( decoder_t *p_dec )
+{
+ decoder_sys_t *p_sys = p_dec->p_sys;
+
+ if( p_sys->p_ff_pic ) av_free( p_sys->p_ff_pic );
+ E_(ClosePostproc)( p_dec, p_sys->p_pp );
+ free( p_sys->p_buffer_orig );
+}
+
+/*****************************************************************************
+ * ffmpeg_InitCodec: setup codec extra initialization data for ffmpeg
+ *****************************************************************************/
+static void ffmpeg_InitCodec( decoder_t *p_dec )
+{
+ decoder_sys_t *p_sys = p_dec->p_sys;
+ int i_size = p_dec->fmt_in.i_extra;
+
+ if( !i_size ) return;
+
+ if( p_sys->i_codec_id == CODEC_ID_SVQ3 )
+ {
+ uint8_t *p;
+
+ p_sys->p_context->extradata_size = i_size + 12;
+ p = p_sys->p_context->extradata =
+ malloc( p_sys->p_context->extradata_size );
+
+ memcpy( &p[0], "SVQ3", 4 );
+ memset( &p[4], 0, 8 );
+ memcpy( &p[12], p_dec->fmt_in.p_extra, i_size );
+
+ /* Now remove all atoms before the SMI one */
+ if( p_sys->p_context->extradata_size > 0x5a &&
+ strncmp( (char*)&p[0x56], "SMI ", 4 ) )
+ {
+ uint8_t *psz = &p[0x52];
+
+ while( psz < &p[p_sys->p_context->extradata_size - 8] )
+ {
+ int i_size = GetDWBE( psz );
+ if( i_size <= 1 )
+ {
+ /* FIXME handle 1 as long size */
+ break;
+ }
+ if( !strncmp( (char*)&psz[4], "SMI ", 4 ) )
+ {
+ memmove( &p[0x52], psz,
+ &p[p_sys->p_context->extradata_size] - psz );
+ break;
+ }
+
+ psz += i_size;
+ }
+ }
+ }
+ else if( p_dec->fmt_in.i_codec == VLC_FOURCC( 'R', 'V', '1', '0' ) ||
+ p_dec->fmt_in.i_codec == VLC_FOURCC( 'R', 'V', '1', '3' ) ||
+ p_dec->fmt_in.i_codec == VLC_FOURCC( 'R', 'V', '2', '0' ) )
+ {
+ if( p_dec->fmt_in.i_extra == 8 )
+ {
+ p_sys->p_context->extradata_size = 8;
+ p_sys->p_context->extradata = malloc( 8 );
+
+ memcpy( p_sys->p_context->extradata,
+ p_dec->fmt_in.p_extra, p_dec->fmt_in.i_extra );
+ p_sys->p_context->sub_id= ((uint32_t*)p_dec->fmt_in.p_extra)[1];
+
+ msg_Warn( p_dec, "using extra data for RV codec sub_id=%08x",
+ p_sys->p_context->sub_id );
+ }
+ }
+ else
+ {
+ p_sys->p_context->extradata_size = i_size;
+ p_sys->p_context->extradata =
+ malloc( i_size + FF_INPUT_BUFFER_PADDING_SIZE );
+ memcpy( p_sys->p_context->extradata,
+ p_dec->fmt_in.p_extra, i_size );
+ memset( &((uint8_t*)p_sys->p_context->extradata)[i_size],
+ 0, FF_INPUT_BUFFER_PADDING_SIZE );
+ }
+}
+
+/*****************************************************************************
+ * ffmpeg_CopyPicture: copy a picture from ffmpeg internal buffers to a
+ * picture_t structure (when not in direct rendering mode).
+ *****************************************************************************/
+static void ffmpeg_CopyPicture( decoder_t *p_dec,
+ picture_t *p_pic, AVFrame *p_ff_pic )
+{
+ decoder_sys_t *p_sys = p_dec->p_sys;
+
+ if( ffmpeg_PixFmtToChroma( p_sys->p_context->pix_fmt ) )
+ {
+ int i_plane, i_size, i_line;
+ uint8_t *p_dst, *p_src;
+ int i_src_stride, i_dst_stride;
+
+ if( p_sys->p_pp && p_sys->b_pp )
+ E_(PostprocPict)( p_dec, p_sys->p_pp, p_pic, p_ff_pic );
+ else
+ {
+ for( i_plane = 0; i_plane < p_pic->i_planes; i_plane++ )
+ {
+ p_src = p_ff_pic->data[i_plane];
+ p_dst = p_pic->p[i_plane].p_pixels;
+ i_src_stride = p_ff_pic->linesize[i_plane];
+ i_dst_stride = p_pic->p[i_plane].i_pitch;
+
+ i_size = __MIN( i_src_stride, i_dst_stride );
+ for( i_line = 0; i_line < p_pic->p[i_plane].i_visible_lines;
+ i_line++ )
+ {
+ p_dec->p_libvlc->pf_memcpy( p_dst, p_src, i_size );
+ p_src += i_src_stride;
+ p_dst += i_dst_stride;
+ }
+ }
+ }
+ }
+ else
+ {
+ AVPicture dest_pic;
+ int i;
+
+ /* we need to convert to I420 */
+ switch( p_sys->p_context->pix_fmt )
+ {
+ case PIX_FMT_YUV410P:
+ case PIX_FMT_YUV411P:
+ case PIX_FMT_BGR24:
+ case PIX_FMT_PAL8:
+ for( i = 0; i < p_pic->i_planes; i++ )
+ {
+ dest_pic.data[i] = p_pic->p[i].p_pixels;
+ dest_pic.linesize[i] = p_pic->p[i].i_pitch;
+ }
+#if !defined(HAVE_FFMPEG_SWSCALE_H) && !defined(HAVE_LIBSWSCALE_TREE)
+ img_convert( &dest_pic, PIX_FMT_YUV420P,
+ (AVPicture *)p_ff_pic,
+ p_sys->p_context->pix_fmt,
+ p_sys->p_context->width,
+ p_sys->p_context->height );
+#endif
+ break;
+ default:
+ msg_Err( p_dec, "don't know how to convert chroma %i",
+ p_sys->p_context->pix_fmt );
+ p_dec->b_error = 1;
+ break;
+ }
+ }
+}
+
+/*****************************************************************************
+ * ffmpeg_GetFrameBuf: callback used by ffmpeg to get a frame buffer.
+ *****************************************************************************
+ * It is used for direct rendering as well as to get the right PTS for each
+ * decoded picture (even in indirect rendering mode).
+ *****************************************************************************/
+static int ffmpeg_GetFrameBuf( struct AVCodecContext *p_context,
+ AVFrame *p_ff_pic )
+{
+ decoder_t *p_dec = (decoder_t *)p_context->opaque;
+ decoder_sys_t *p_sys = p_dec->p_sys;
+ picture_t *p_pic;
+
+ /* Set picture PTS */
+ if( p_sys->input_pts )
+ {
+ p_ff_pic->pts = p_sys->input_pts;
+ }
+ else if( p_sys->input_dts )
+ {
+ /* Some demuxers only set the dts so let's try to find a useful
+ * timestamp from this */
+ if( !p_context->has_b_frames || !p_sys->b_has_b_frames ||
+ !p_ff_pic->reference || !p_sys->i_pts )
+ {
+ p_ff_pic->pts = p_sys->input_dts;
+ }
+ else p_ff_pic->pts = 0;
+ }
+ else p_ff_pic->pts = 0;
+
+ if( p_sys->i_pts ) /* make sure 1st frame has a pts > 0 */
+ {
+ p_sys->input_pts = p_sys->input_dts = 0;
+ }
+
+ p_ff_pic->opaque = 0;
+
+ /* Not much to do in indirect rendering mode */
+ if( !p_sys->b_direct_rendering || p_sys->b_pp )
+ {
+ return avcodec_default_get_buffer( p_context, p_ff_pic );
+ }
+
+ /* Some codecs set pix_fmt only after the 1st frame has been decoded,
+ * so this check is necessary. */
+ if( !ffmpeg_PixFmtToChroma( p_context->pix_fmt ) ||
+ p_sys->p_context->width % 16 || p_sys->p_context->height % 16 )
+ {
+ msg_Dbg( p_dec, "disabling direct rendering" );
+ p_sys->b_direct_rendering = 0;
+ return avcodec_default_get_buffer( p_context, p_ff_pic );
+ }
+
+ /* Get a new picture */
+ //p_sys->p_vout->render.b_allow_modify_pics = 0;
+ p_pic = ffmpeg_NewPictBuf( p_dec, p_sys->p_context );
+ if( !p_pic )
+ {
+ p_sys->b_direct_rendering = 0;
+ return avcodec_default_get_buffer( p_context, p_ff_pic );
+ }
+ p_sys->p_context->draw_horiz_band = NULL;
+
+ p_ff_pic->opaque = (void*)p_pic;
+ p_ff_pic->type = FF_BUFFER_TYPE_USER;
+ p_ff_pic->data[0] = p_pic->p[0].p_pixels;
+ p_ff_pic->data[1] = p_pic->p[1].p_pixels;
+ p_ff_pic->data[2] = p_pic->p[2].p_pixels;
+ p_ff_pic->data[3] = NULL; /* alpha channel but I'm not sure */
+
+ p_ff_pic->linesize[0] = p_pic->p[0].i_pitch;
+ p_ff_pic->linesize[1] = p_pic->p[1].i_pitch;
+ p_ff_pic->linesize[2] = p_pic->p[2].i_pitch;
+ p_ff_pic->linesize[3] = 0;
+
+ if( p_ff_pic->reference != 0 ||
+ p_sys->i_codec_id == CODEC_ID_H264 /* Bug in libavcodec */ )
+ {
+ p_dec->pf_picture_link( p_dec, p_pic );
+ }
+
+ /* FIXME what is that, should give good value */
+ p_ff_pic->age = 256*256*256*64; // FIXME FIXME from ffmpeg
+
+ return 0;
+}
+
+static void ffmpeg_ReleaseFrameBuf( struct AVCodecContext *p_context,
+ AVFrame *p_ff_pic )
+{
+ decoder_t *p_dec = (decoder_t *)p_context->opaque;
+ picture_t *p_pic;
+
+ if( !p_ff_pic->opaque )
+ {
+ avcodec_default_release_buffer( p_context, p_ff_pic );
+ return;
+ }
+
+ p_pic = (picture_t*)p_ff_pic->opaque;
+
+ p_ff_pic->data[0] = NULL;
+ p_ff_pic->data[1] = NULL;
+ p_ff_pic->data[2] = NULL;
+ p_ff_pic->data[3] = NULL;
+
+ if( p_ff_pic->reference != 0 ||
+ p_dec->p_sys->i_codec_id == CODEC_ID_H264 /* Bug in libavcodec */ )
+ {
+ p_dec->pf_picture_unlink( p_dec, p_pic );
+ }
+}
projects / vlc / blobdiff