/***************************************************************************** * 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 InitVideoDec( decoder_t *p_dec, AVCodecContext *p_context, AVCodec *p_codec, int i_codec_id, const char *psz_namecodec ) { decoder_sys_t *p_sys; int i_val; /* Allocate the memory needed to store the decoder's structure */ if( ( p_dec->p_sys = p_sys = calloc( 1, sizeof(decoder_sys_t) ) ) == NULL ) return VLC_ENOMEM; p_codec->type = AVMEDIA_TYPE_VIDEO; p_context->codec_type = AVMEDIA_TYPE_VIDEO; p_context->codec_id = i_codec_id; p_sys->p_context = p_context; p_sys->p_codec = p_codec; p_sys->i_codec_id = i_codec_id; p_sys->psz_namecodec = psz_namecodec; p_sys->p_ff_pic = avcodec_alloc_frame(); p_sys->b_delayed_open = true; p_sys->p_va = NULL; vlc_sem_init( &p_sys->sem_mt, 0 ); /* ***** Fill p_context with init values ***** */ p_sys->p_context->codec_tag = ffmpeg_CodecTag( p_dec->fmt_in.i_original_fourcc ?: p_dec->fmt_in.i_codec ); /* ***** Get configuration of ffmpeg plugin ***** */ p_sys->p_context->workaround_bugs = var_InheritInteger( p_dec, "ffmpeg-workaround-bugs" ); #if LIBAVCODEC_VERSION_MAJOR < 54 p_sys->p_context->error_recognition = #else p_sys->p_context->err_recognition = #endif var_InheritInteger( p_dec, "ffmpeg-error-resilience" ); if( var_CreateGetBool( p_dec, "grayscale" ) ) p_sys->p_context->flags |= CODEC_FLAG_GRAY; i_val = var_CreateGetInteger( p_dec, "ffmpeg-vismv" ); if( i_val ) p_sys->p_context->debug_mv = i_val; i_val = var_CreateGetInteger( p_dec, "ffmpeg-lowres" ); if( i_val > 0 && i_val <= 2 ) p_sys->p_context->lowres = i_val; i_val = var_CreateGetInteger( p_dec, "ffmpeg-skiploopfilter" ); if( i_val >= 4 ) p_sys->p_context->skip_loop_filter = AVDISCARD_ALL; else if( i_val == 3 ) p_sys->p_context->skip_loop_filter = AVDISCARD_NONKEY; else if( i_val == 2 ) p_sys->p_context->skip_loop_filter = AVDISCARD_BIDIR; else if( i_val == 1 ) p_sys->p_context->skip_loop_filter = AVDISCARD_NONREF; if( var_CreateGetBool( p_dec, "ffmpeg-fast" ) ) p_sys->p_context->flags2 |= CODEC_FLAG2_FAST; /* ***** ffmpeg frame skipping ***** */ p_sys->b_hurry_up = var_CreateGetBool( p_dec, "ffmpeg-hurry-up" ); switch( var_CreateGetInteger( p_dec, "ffmpeg-skip-frame" ) ) { 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_NONREF; 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; switch( var_CreateGetInteger( p_dec, "ffmpeg-skip-idct" ) ) { 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_NONREF; 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 = false; p_sys->i_direct_rendering_used = -1; if( var_CreateGetBool( p_dec, "ffmpeg-dr" ) && (p_sys->p_codec->capabilities & CODEC_CAP_DR1) && /* No idea why ... but this fixes flickering on some TSCC streams */ p_sys->i_codec_id != CODEC_ID_TSCC && p_sys->i_codec_id != CODEC_ID_CSCD && p_sys->i_codec_id != CODEC_ID_CINEPAK && #if (LIBAVCODEC_VERSION_INT >= AV_VERSION_INT( 52, 68, 2 ) ) && (LIBAVCODEC_VERSION_INT < AV_VERSION_INT( 52, 100, 1 ) ) /* avcodec native vp8 decode doesn't handle EMU_EDGE flag, and I don't have idea howto implement fallback to libvpx decoder */ p_sys->i_codec_id != CODEC_ID_VP8 && #endif !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 = true; } /* ffmpeg doesn't properly release old pictures when frames are skipped */ //if( p_sys->b_hurry_up ) p_sys->b_direct_rendering = false; if( p_sys->b_direct_rendering ) { msg_Dbg( p_dec, "trying to use direct rendering" ); p_sys->p_context->flags |= CODEC_FLAG_EMU_EDGE; } else { msg_Dbg( p_dec, "direct rendering is disabled" ); } /* 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->reget_buffer = ffmpeg_ReGetFrameBuf; p_sys->p_context->release_buffer = ffmpeg_ReleaseFrameBuf; p_sys->p_context->opaque = p_dec; #ifdef HAVE_AVCODEC_MT int i_thread_count = var_InheritInteger( p_dec, "ffmpeg-threads" ); if( i_thread_count <= 0 ) { i_thread_count = vlc_GetCPUCount(); if( i_thread_count > 1 ) i_thread_count++; //FIXME: take in count the decoding time i_thread_count = __MIN( i_thread_count, 4 ); } i_thread_count = __MIN( i_thread_count, 16 ); msg_Dbg( p_dec, "allowing %d thread(s) for decoding", i_thread_count ); p_sys->p_context->thread_count = i_thread_count; #endif #ifdef HAVE_AVCODEC_VA const bool b_use_hw = var_CreateGetBool( p_dec, "ffmpeg-hw" ); if( b_use_hw && (i_codec_id == CODEC_ID_MPEG1VIDEO || i_codec_id == CODEC_ID_MPEG2VIDEO || i_codec_id == CODEC_ID_MPEG4 || i_codec_id == CODEC_ID_H264 || i_codec_id == CODEC_ID_VC1 || i_codec_id == CODEC_ID_WMV3) ) { #ifdef HAVE_AVCODEC_MT if( p_sys->p_context->thread_type & FF_THREAD_FRAME ) { msg_Warn( p_dec, "threaded frame decoding is not compatible with ffmpeg-hw, disabled" ); p_sys->p_context->thread_type &= ~FF_THREAD_FRAME; } if( ( p_sys->p_context->thread_type & FF_THREAD_SLICE ) && ( i_codec_id == CODEC_ID_MPEG1VIDEO || i_codec_id == CODEC_ID_MPEG2VIDEO ) ) { msg_Warn( p_dec, "threaded slice decoding is not compatible with ffmpeg-hw, disabled" ); p_sys->p_context->thread_type &= ~FF_THREAD_SLICE; } #endif p_sys->p_context->get_format = ffmpeg_GetFormat; } #endif #ifdef HAVE_AVCODEC_MT if( p_sys->p_context->thread_type & FF_THREAD_FRAME ) p_dec->i_extra_picture_buffers = 2 * p_sys->p_context->thread_count; #endif /* ***** misc init ***** */ p_sys->i_pts = VLC_TS_INVALID; p_sys->b_has_b_frames = false; p_sys->b_first_frame = true; p_sys->b_flush = false; p_sys->i_late_frames = 0; /* Set output properties */ p_dec->fmt_out.i_cat = VIDEO_ES; if( GetVlcChroma( &p_dec->fmt_out.video, p_context->pix_fmt ) != VLC_SUCCESS ) { /* we are doomed. but not really, because most codecs set their pix_fmt later on */ p_dec->fmt_out.i_codec = VLC_CODEC_I420; } p_dec->fmt_out.i_codec = p_dec->fmt_out.video.i_chroma; #if LIBAVCODEC_VERSION_MAJOR < 54 /* Setup palette */ memset( &p_sys->palette, 0, sizeof(p_sys->palette) ); if( p_dec->fmt_in.video.p_palette ) { p_sys->palette.palette_changed = 1; for( int i = 0; i < __MIN( AVPALETTE_COUNT, p_dec->fmt_in.video.p_palette->i_entries ); i++ ) { union { uint32_t u; uint8_t a[4]; } c; c.a[0] = p_dec->fmt_in.video.p_palette->palette[i][0]; c.a[1] = p_dec->fmt_in.video.p_palette->palette[i][1]; c.a[2] = p_dec->fmt_in.video.p_palette->palette[i][2]; c.a[3] = p_dec->fmt_in.video.p_palette->palette[i][3]; p_sys->palette.palette[i] = c.u; } p_sys->p_context->palctrl = &p_sys->palette; p_dec->fmt_out.video.p_palette = malloc( sizeof(video_palette_t) ); if( p_dec->fmt_out.video.p_palette ) *p_dec->fmt_out.video.p_palette = *p_dec->fmt_in.video.p_palette; } else if( p_sys->i_codec_id != CODEC_ID_MSVIDEO1 && p_sys->i_codec_id != CODEC_ID_CINEPAK ) { p_sys->p_context->palctrl = &p_sys->palette; } #else # warning FIXME #endif /* ***** init this codec with special data ***** */ ffmpeg_InitCodec( p_dec ); /* ***** Open the codec ***** */ if( ffmpeg_OpenCodec( p_dec ) < 0 ) { msg_Err( p_dec, "cannot open codec (%s)", p_sys->psz_namecodec ); av_free( p_sys->p_ff_pic ); vlc_sem_destroy( &p_sys->sem_mt ); free( p_sys ); return VLC_EGENERIC; } return VLC_SUCCESS; }
/***************************************************************************** * DecodeVideo: Called to decode one or more frames *****************************************************************************/ picture_t *DecodeVideo( decoder_t *p_dec, block_t **pp_block ) { decoder_sys_t *p_sys = p_dec->p_sys; AVCodecContext *p_context = p_sys->p_context; int b_drawpicture; int b_null_size = false; block_t *p_block; if( !pp_block || !*pp_block ) return NULL; if( !p_context->extradata_size && p_dec->fmt_in.i_extra ) { ffmpeg_InitCodec( p_dec ); if( p_sys->b_delayed_open ) { if( ffmpeg_OpenCodec( p_dec ) ) msg_Err( p_dec, "cannot open codec (%s)", p_sys->psz_namecodec ); } } p_block = *pp_block; if( p_sys->b_delayed_open ) { block_Release( p_block ); return NULL; } if( p_block->i_flags & (BLOCK_FLAG_DISCONTINUITY|BLOCK_FLAG_CORRUPTED) ) { p_sys->i_pts = VLC_TS_INVALID; /* To make sure we recover properly */ p_sys->i_late_frames = 0; if( p_block->i_flags & BLOCK_FLAG_DISCONTINUITY ) avcodec_flush_buffers( p_context ); block_Release( p_block ); 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 > INT64_C(5000000)) ) { if( p_sys->i_pts > VLC_TS_INVALID ) { msg_Err( p_dec, "more than 5 seconds of late video -> " "dropping frame (computer too slow ?)" ); p_sys->i_pts = VLC_TS_INVALID; /* To make sure we recover properly */ } block_Release( p_block ); p_sys->i_late_frames--; return NULL; } /* 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 < 12 ) { p_context->skip_frame = (p_sys->i_skip_frame <= AVDISCARD_NONREF) ? AVDISCARD_NONREF : 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 ); return NULL; } } else { if( p_sys->b_hurry_up ) 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_context->width <= 0 || p_context->height <= 0 ) { if( p_sys->b_hurry_up ) p_context->skip_frame = p_sys->i_skip_frame; b_null_size = true; } else if( !b_drawpicture ) { /* It creates broken picture * FIXME either our parser or ffmpeg is broken */ #if 0 if( p_sys->b_hurry_up ) p_context->skip_frame = __MAX( p_context->skip_frame, AVDISCARD_NONREF ); #endif } /* * Do the actual decoding now */ /* Don't forget that ffmpeg requires a little more bytes * that the real frame size */ if( p_block->i_buffer > 0 ) { p_sys->b_flush = ( p_block->i_flags & BLOCK_FLAG_END_OF_SEQUENCE ) != 0; p_block = block_Realloc( p_block, 0, p_block->i_buffer + FF_INPUT_BUFFER_PADDING_SIZE ); if( !p_block ) return NULL; p_block->i_buffer -= FF_INPUT_BUFFER_PADDING_SIZE; *pp_block = p_block; memset( p_block->p_buffer + p_block->i_buffer, 0, FF_INPUT_BUFFER_PADDING_SIZE ); } while( p_block->i_buffer > 0 || p_sys->b_flush ) { int i_used, b_gotpicture; picture_t *p_pic; AVPacket pkt; /* Set the PTS/DTS in the context reordered_opaque field */ if( p_block->i_pts > VLC_TS_INVALID ) p_context->reordered_opaque = (p_block->i_pts << 1) | 0; else if( p_block->i_dts > VLC_TS_INVALID ) p_context->reordered_opaque = (p_block->i_dts << 1) | 1; else p_context->reordered_opaque = INT64_MIN; p_sys->p_ff_pic->reordered_opaque = p_context->reordered_opaque; /* Make sure we don't reuse the same timestamps twice */ p_block->i_pts = p_block->i_dts = VLC_TS_INVALID; post_mt( p_sys ); av_init_packet( &pkt ); pkt.data = p_block->p_buffer; pkt.size = p_block->i_buffer; i_used = avcodec_decode_video2( p_context, p_sys->p_ff_pic, &b_gotpicture, &pkt ); if( b_null_size && !p_sys->b_flush && p_context->width > 0 && p_context->height > 0 ) { /* Reparse it to not drop the I frame */ b_null_size = false; if( p_sys->b_hurry_up ) p_context->skip_frame = p_sys->i_skip_frame; i_used = avcodec_decode_video2( p_context, p_sys->p_ff_pic, &b_gotpicture, &pkt ); } wait_mt( p_sys ); if( p_sys->b_flush ) p_sys->b_first_frame = true; if( p_block->i_buffer <= 0 ) p_sys->b_flush = false; if( i_used < 0 ) { if( b_drawpicture ) msg_Warn( p_dec, "cannot decode one frame (%zu bytes)", p_block->i_buffer ); block_Release( p_block ); return NULL; } else if( i_used > p_block->i_buffer || p_context->thread_count > 1 ) { i_used = p_block->i_buffer; } /* Consumed bytes */ p_block->i_buffer -= i_used; p_block->p_buffer += i_used; /* Nothing to display */ if( !b_gotpicture ) { if( i_used == 0 ) break; continue; } /* Sanity check (seems to be needed for some streams) */ if( p_sys->p_ff_pic->pict_type == AV_PICTURE_TYPE_B) { p_sys->b_has_b_frames = true; } /* Compute the PTS */ mtime_t i_pts = VLC_TS_INVALID; if( p_sys->p_ff_pic->reordered_opaque != INT64_MIN ) { mtime_t i_ts = p_sys->p_ff_pic->reordered_opaque >> 1; bool b_dts = p_sys->p_ff_pic->reordered_opaque & 1; if( b_dts ) { if( !p_context->has_b_frames || !p_sys->b_has_b_frames || !p_sys->p_ff_pic->reference || p_sys->i_pts <= VLC_TS_INVALID ) i_pts = i_ts; /* Guess what ? The rules are different for Real Video :( */ if( (p_dec->fmt_in.i_codec == VLC_CODEC_RV30 || p_dec->fmt_in.i_codec == VLC_CODEC_RV40) && p_sys->b_has_b_frames ) { i_pts = VLC_TS_INVALID; if(p_sys->p_ff_pic->reference) i_pts = i_ts; } } else { i_pts = i_ts; } } if( i_pts <= VLC_TS_INVALID ) i_pts = p_sys->i_pts; /* Interpolate the next PTS */ if( i_pts > VLC_TS_INVALID ) p_sys->i_pts = i_pts; if( p_sys->i_pts > VLC_TS_INVALID ) { /* 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 += INT64_C(1000000) * (2 + p_sys->p_ff_pic->repeat_pict) * p_dec->fmt_in.video.i_frame_rate_base / (2 * p_dec->fmt_in.video.i_frame_rate); } else if( p_context->time_base.den > 0 ) { int i_tick = p_context->ticks_per_frame; if( i_tick <= 0 ) i_tick = 1; p_sys->i_pts += INT64_C(1000000) * (2 + p_sys->p_ff_pic->repeat_pict) * i_tick * p_context->time_base.num / (2 * p_context->time_base.den); } } /* Update frame late count (except when doing preroll) */ mtime_t i_display_date = 0; if( !(p_block->i_flags & BLOCK_FLAG_PREROLL) ) i_display_date = decoder_GetDisplayDate( p_dec, i_pts ); if( i_display_date > 0 && i_display_date <= mdate() ) { 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_va && !p_sys->p_ff_pic->linesize[0] ) ) continue; if( !p_sys->p_ff_pic->opaque ) { /* Get a new picture */ p_pic = ffmpeg_NewPictBuf( p_dec, 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; decoder_LinkPicture( p_dec, p_pic ); } if( !p_dec->fmt_in.video.i_sar_num || !p_dec->fmt_in.video.i_sar_den ) { /* Fetch again the aspect ratio in case it changed */ 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_sar_num || !p_dec->fmt_out.video.i_sar_den ) { p_dec->fmt_out.video.i_sar_num = 1; p_dec->fmt_out.video.i_sar_den = 1; } } /* Send decoded frame to vout */ if( i_pts > VLC_TS_INVALID) { p_pic->date = i_pts; if( p_sys->b_first_frame ) { /* Hack to force display of still pictures */ p_sys->b_first_frame = false; p_pic->b_force = 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; p_pic->i_qstride = p_sys->p_ff_pic->qstride; int i_mb_h = ( p_pic->format.i_height + 15 ) / 16; p_pic->p_q = malloc( p_pic->i_qstride * i_mb_h ); memcpy( p_pic->p_q, p_sys->p_ff_pic->qscale_table, p_pic->i_qstride * i_mb_h ); switch( p_sys->p_ff_pic->qscale_type ) { case FF_QSCALE_TYPE_MPEG1: p_pic->i_qtype = QTYPE_MPEG1; break; case FF_QSCALE_TYPE_MPEG2: p_pic->i_qtype = QTYPE_MPEG2; break; case FF_QSCALE_TYPE_H264: p_pic->i_qtype = QTYPE_H264; break; } return p_pic; } else { decoder_DeletePicture( p_dec, p_pic ); } }
/***************************************************************************** * DecodeAudio: Called to decode one frame *****************************************************************************/ block_t * DecodeAudio ( decoder_t *p_dec, block_t **pp_block ) { decoder_sys_t *p_sys = p_dec->p_sys; AVCodecContext *ctx = p_sys->p_context; if( !pp_block || !*pp_block ) return NULL; block_t *p_block = *pp_block; if( !ctx->extradata_size && p_dec->fmt_in.i_extra && p_sys->b_delayed_open) { InitDecoderConfig( p_dec, ctx ); if( ffmpeg_OpenCodec( p_dec ) ) msg_Err( p_dec, "Cannot open decoder %s", p_sys->psz_namecodec ); } if( p_sys->b_delayed_open ) goto end; if( p_block->i_flags & (BLOCK_FLAG_DISCONTINUITY|BLOCK_FLAG_CORRUPTED) ) { avcodec_flush_buffers( ctx ); date_Set( &p_sys->end_date, 0 ); if( p_sys->i_codec_id == AV_CODEC_ID_MP2 || p_sys->i_codec_id == AV_CODEC_ID_MP3 ) p_sys->i_reject_count = 3; goto end; } /* We've just started the stream, wait for the first PTS. */ if( !date_Get( &p_sys->end_date ) && p_block->i_pts <= VLC_TS_INVALID ) goto end; if( p_block->i_buffer <= 0 ) goto end; if( (p_block->i_flags & BLOCK_FLAG_PRIVATE_REALLOCATED) == 0 ) { p_block = block_Realloc( p_block, 0, p_block->i_buffer + FF_INPUT_BUFFER_PADDING_SIZE ); if( !p_block ) return NULL; *pp_block = p_block; p_block->i_buffer -= FF_INPUT_BUFFER_PADDING_SIZE; memset( &p_block->p_buffer[p_block->i_buffer], 0, FF_INPUT_BUFFER_PADDING_SIZE ); p_block->i_flags |= BLOCK_FLAG_PRIVATE_REALLOCATED; } AVFrame frame; memset( &frame, 0, sizeof( frame ) ); for( int got_frame = 0; !got_frame; ) { if( p_block->i_buffer == 0 ) goto end; AVPacket pkt; av_init_packet( &pkt ); pkt.data = p_block->p_buffer; pkt.size = p_block->i_buffer; int used = avcodec_decode_audio4( ctx, &frame, &got_frame, &pkt ); if( used < 0 ) { msg_Warn( p_dec, "cannot decode one frame (%zu bytes)", p_block->i_buffer ); goto end; } assert( p_block->i_buffer >= (unsigned)used ); p_block->p_buffer += used; p_block->i_buffer -= used; } if( ctx->channels <= 0 || ctx->channels > 8 || ctx->sample_rate <= 0 ) { msg_Warn( p_dec, "invalid audio properties channels count %d, sample rate %d", ctx->channels, ctx->sample_rate ); goto end; } if( p_dec->fmt_out.audio.i_rate != (unsigned int)ctx->sample_rate ) date_Init( &p_sys->end_date, ctx->sample_rate, 1 ); if( p_block->i_pts > VLC_TS_INVALID && p_block->i_pts > date_Get( &p_sys->end_date ) ) { date_Set( &p_sys->end_date, p_block->i_pts ); } if( p_block->i_buffer == 0 ) { /* Done with this buffer */ block_Release( p_block ); *pp_block = NULL; } /* NOTE WELL: Beyond this point, p_block now refers to the DECODED block */ p_block = (block_t *)frame.opaque; // sunqueen modify SetupOutputFormat( p_dec, true ); /* Silent unwanted samples */ if( p_sys->i_reject_count > 0 ) { memset( p_block->p_buffer, 0, p_block->i_buffer ); p_sys->i_reject_count--; } block_t *p_buffer = decoder_NewAudioBuffer( p_dec, p_block->i_nb_samples ); if (!p_buffer) { block_Release( p_block ); if( av_sample_fmt_is_planar( ctx->sample_fmt ) && ctx->channels > AV_NUM_DATA_POINTERS ) free( frame.extended_data ); return NULL; } assert( p_block->i_nb_samples >= (unsigned)frame.nb_samples ); assert( p_block->i_nb_samples == p_buffer->i_nb_samples ); p_block->i_buffer = p_buffer->i_buffer; /* drop buffer padding */ /* Interleave audio if required */ if( av_sample_fmt_is_planar( ctx->sample_fmt ) ) { // const void *planes[ctx->channels]; const void **planes = (const void **)malloc(ctx->channels * sizeof(void *)); // sunqueen modify for( int i = 0; i < ctx->channels; i++) planes[i] = frame.extended_data[i]; aout_Interleave( p_buffer->p_buffer, planes, frame.nb_samples, ctx->channels, p_dec->fmt_out.audio.i_format ); if( ctx->channels > AV_NUM_DATA_POINTERS ) free( frame.extended_data ); block_Release( p_block ); p_block = p_buffer; } else /* FIXME: improve decoder_NewAudioBuffer(), avoid useless buffer... */ block_Release( p_buffer ); if (p_sys->b_extract) { /* TODO: do not drop channels... at least not here */ p_buffer = block_Alloc( p_dec->fmt_out.audio.i_bytes_per_frame * frame.nb_samples ); if( unlikely(p_buffer == NULL) ) { block_Release( p_block ); return NULL; } aout_ChannelExtract( p_buffer->p_buffer, p_dec->fmt_out.audio.i_channels, p_block->p_buffer, ctx->channels, frame.nb_samples, p_sys->pi_extraction, p_dec->fmt_out.audio.i_bitspersample ); block_Release( p_block ); p_block = p_buffer; } p_block->i_nb_samples = frame.nb_samples; p_block->i_buffer = frame.nb_samples * p_dec->fmt_out.audio.i_bytes_per_frame; p_block->i_pts = date_Get( &p_sys->end_date ); p_block->i_length = date_Increment( &p_sys->end_date, frame.nb_samples ) - p_block->i_pts; return p_block; end: block_Release(p_block); *pp_block = NULL; return NULL; }