mirror of https://github.com/FFmpeg/FFmpeg.git
The Broadcom CrystalHD decoder chips provide hardware video decoding for a number of video formats. It does so using a memory:memory interface where a compressed bitstream is fed in and decompressed pictures are copied out. As such, it works independent of any graphics hardware in the system. Features supported in this initial version: * Support for Linux (using current drivers/library from git.wilsonet.com) * Support for 70015 hardware * Formats: MPEG2, MPEG4 Part 2, H.264, VC1 and DivX 3.11 (untested) * Progressive content * Non-H.264 Interlaced content * H.264 MBAFF content Features missing in this initial version: * Support for OSX (might work - untested) * Support for Windows * Support for 70012 hardware * H.264 PAFF content Signed-off-by: Philip Langdale <philipl@overt.org> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>oldabi
Philip Langdale
14 years ago
committed by
Michael Niedermayer
parent
0b82612d35
commit
b33fa8a1cd
5 changed files with 978 additions and 0 deletions
@ -0,0 +1,960 @@ |
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/*
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* - CrystalHD decoder module - |
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* |
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* Copyright(C) 2010 Philip Langdale <ffmpeg.philipl@overt.org> |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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/*
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* - Principles of Operation - |
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* |
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* The CrystalHD decoder operates at the bitstream level - which is an even |
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* higher level than the decoding hardware you typically see in modern GPUs. |
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* This means it has a very simple interface, in principle. You feed demuxed |
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* packets in one end and get decoded picture (fields/frames) out the other. |
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* |
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* Of course, nothing is ever that simple. Due, at the very least, to b-frame |
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* dependencies in the supported formats, the hardware has a delay between |
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* when a packet goes in, and when a picture comes out. Furthermore, this delay |
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* is not just a function of time, but also one of the dependency on additional |
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* frames being fed into the decoder to satisfy the b-frame dependencies. |
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* |
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* As such, a pipeline will build up that is roughly equivalent to the required |
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* DPB for the file being played. If that was all it took, things would still |
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* be simple - so, of course, it isn't. |
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* |
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* The hardware has a way of indicating that a picture is ready to be copied out, |
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* but this is unreliable - and sometimes the attempt will still fail so, based |
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* on testing, the code will wait until 3 pictures are ready before starting |
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* to copy out - and this has the effect of extending the pipeline. |
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* |
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* Finally, while it is tempting to say that once the decoder starts outputing |
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* frames, the software should never fail to return a frame from a decode(), |
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* this is a hard assertion to make, because the stream may switch between |
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* differently encoded content (number of b-frames, interlacing, etc) which |
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* might require a longer pipeline than before. If that happened, you could |
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* deadlock trying to retrieve a frame that can't be decoded without feeding |
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* in additional packets. |
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* |
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* As such, the code will return in the event that a picture cannot be copied |
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* out, leading to an increase in the length of the pipeline. This in turn, |
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* means we have to be sensitive to the time it takes to decode a picture; |
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* We do not want to give up just because the hardware needed a little more |
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* time to prepare the picture! For this reason, there are delays included |
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* in the decode() path that ensure that, under normal conditions, the hardware |
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* will only fail to return a frame if it really needs additional packets to |
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* complete the decoding. |
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* |
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* Finally, to be explicit, we do not want the pipeline to grow without bound |
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* for two reasons: 1) The hardware can only buffer a finite number of packets, |
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* and 2) The client application may not be able to cope with arbitrarily long |
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* delays in the video path relative to the audio path. For example. MPlayer |
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* can only handle a 20 picture delay (although this is arbitrary, and needs |
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* to be extended to fully support the CrystalHD where the delay could be up |
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* to 32 pictures - consider PAFF H.264 content with 16 b-frames). |
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*/ |
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/*****************************************************************************
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* Includes |
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****************************************************************************/ |
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#define _XOPEN_SOURCE 600 |
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#include <inttypes.h> |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <unistd.h> |
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#include <libcrystalhd/bc_dts_types.h> |
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#include <libcrystalhd/bc_dts_defs.h> |
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#include <libcrystalhd/libcrystalhd_if.h> |
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#include "avcodec.h" |
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#include "libavutil/imgutils.h" |
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#include "libavutil/intreadwrite.h" |
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/* Timeout parameter passed to DtsProcOutput() in us */ |
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#define OUTPUT_PROC_TIMEOUT 50 |
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/* Step between fake timestamps passed to hardware in units of 100ns */ |
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#define TIMESTAMP_UNIT 100000 |
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/* Initial value in us of the wait in decode() */ |
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#define BASE_WAIT 10000 |
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/* Increment in us to adjust wait in decode() */ |
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#define WAIT_UNIT 1000 |
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/*****************************************************************************
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* Module private data |
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****************************************************************************/ |
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typedef enum { |
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RET_ERROR = -1, |
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RET_OK = 0, |
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RET_COPY_AGAIN = 1, |
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RET_SKIP_NEXT_COPY = 2, |
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} CopyRet; |
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typedef struct OpaqueList { |
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struct OpaqueList *next; |
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uint64_t fake_timestamp; |
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uint64_t reordered_opaque; |
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} OpaqueList; |
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typedef struct { |
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AVCodecContext *avctx; |
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AVFrame pic; |
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HANDLE dev; |
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uint8_t is_70012; |
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uint8_t *sps_pps_buf; |
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uint32_t sps_pps_size; |
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uint8_t is_nal; |
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uint8_t output_ready; |
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uint8_t need_second_field; |
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uint8_t skip_next_output; |
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uint64_t decode_wait; |
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uint64_t last_picture; |
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OpaqueList *head; |
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OpaqueList *tail; |
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} CHDContext; |
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/*****************************************************************************
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* Helper functions |
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****************************************************************************/ |
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static inline BC_MEDIA_SUBTYPE id2subtype(CHDContext *priv, enum CodecID id) |
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{ |
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switch (id) { |
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case CODEC_ID_MPEG4: |
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return BC_MSUBTYPE_DIVX; |
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case CODEC_ID_MSMPEG4V3: |
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return BC_MSUBTYPE_DIVX311; |
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case CODEC_ID_MPEG2VIDEO: |
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return BC_MSUBTYPE_MPEG2VIDEO; |
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case CODEC_ID_VC1: |
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return BC_MSUBTYPE_VC1; |
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case CODEC_ID_WMV3: |
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return BC_MSUBTYPE_WMV3; |
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case CODEC_ID_H264: |
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return priv->is_nal ? BC_MSUBTYPE_AVC1 : BC_MSUBTYPE_H264; |
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default: |
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return BC_MSUBTYPE_INVALID; |
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} |
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} |
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static inline void print_frame_info(CHDContext *priv, BC_DTS_PROC_OUT *output) |
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{ |
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av_log(priv->avctx, AV_LOG_VERBOSE, "\tYBuffSz: %u\n", output->YbuffSz); |
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av_log(priv->avctx, AV_LOG_VERBOSE, "\tYBuffDoneSz: %u\n", |
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output->YBuffDoneSz); |
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av_log(priv->avctx, AV_LOG_VERBOSE, "\tUVBuffDoneSz: %u\n", |
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output->UVBuffDoneSz); |
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av_log(priv->avctx, AV_LOG_VERBOSE, "\tTimestamp: %"PRIu64"\n", |
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output->PicInfo.timeStamp); |
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av_log(priv->avctx, AV_LOG_VERBOSE, "\tPicture Number: %u\n", |
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output->PicInfo.picture_number); |
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av_log(priv->avctx, AV_LOG_VERBOSE, "\tWidth: %u\n", |
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output->PicInfo.width); |
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av_log(priv->avctx, AV_LOG_VERBOSE, "\tHeight: %u\n", |
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output->PicInfo.height); |
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av_log(priv->avctx, AV_LOG_VERBOSE, "\tChroma: 0x%03x\n", |
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output->PicInfo.chroma_format); |
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av_log(priv->avctx, AV_LOG_VERBOSE, "\tPulldown: %u\n", |
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output->PicInfo.pulldown); |
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av_log(priv->avctx, AV_LOG_VERBOSE, "\tFlags: 0x%08x\n", |
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output->PicInfo.flags); |
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av_log(priv->avctx, AV_LOG_VERBOSE, "\tFrame Rate/Res: %u\n", |
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output->PicInfo.frame_rate); |
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av_log(priv->avctx, AV_LOG_VERBOSE, "\tAspect Ratio: %u\n", |
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output->PicInfo.aspect_ratio); |
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av_log(priv->avctx, AV_LOG_VERBOSE, "\tColor Primaries: %u\n", |
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output->PicInfo.colour_primaries); |
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av_log(priv->avctx, AV_LOG_VERBOSE, "\tMetaData: %u\n", |
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output->PicInfo.picture_meta_payload); |
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av_log(priv->avctx, AV_LOG_VERBOSE, "\tSession Number: %u\n", |
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output->PicInfo.sess_num); |
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av_log(priv->avctx, AV_LOG_VERBOSE, "\tycom: %u\n", |
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output->PicInfo.ycom); |
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av_log(priv->avctx, AV_LOG_VERBOSE, "\tCustom Aspect: %u\n", |
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output->PicInfo.custom_aspect_ratio_width_height); |
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av_log(priv->avctx, AV_LOG_VERBOSE, "\tFrames to Drop: %u\n", |
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output->PicInfo.n_drop); |
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av_log(priv->avctx, AV_LOG_VERBOSE, "\tH264 Valid Fields: 0x%08x\n", |
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output->PicInfo.other.h264.valid); |
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} |
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/*****************************************************************************
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* OpaqueList functions |
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****************************************************************************/ |
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static uint64_t opaque_list_push(CHDContext *priv, uint64_t reordered_opaque) |
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{ |
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OpaqueList *newNode = av_mallocz(sizeof (OpaqueList)); |
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if (!newNode) { |
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av_log(priv->avctx, AV_LOG_ERROR, |
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"Unable to allocate new node in OpaqueList.\n"); |
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return 0; |
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} |
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if (!priv->head) { |
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newNode->fake_timestamp = TIMESTAMP_UNIT; |
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priv->head = newNode; |
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} else { |
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newNode->fake_timestamp = priv->tail->fake_timestamp + TIMESTAMP_UNIT; |
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priv->tail->next = newNode; |
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} |
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priv->tail = newNode; |
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newNode->reordered_opaque = reordered_opaque; |
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return newNode->fake_timestamp; |
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} |
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/*
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* The OpaqueList is built in decode order, while elements will be removed |
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* in presentation order. If frames are reordered, this means we must be |
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* able to remove elements that are not the first element. |
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*/ |
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static uint64_t opaque_list_pop(CHDContext *priv, uint64_t fake_timestamp) |
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{ |
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OpaqueList *node = priv->head; |
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if (!priv->head) { |
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av_log(priv->avctx, AV_LOG_ERROR, |
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"CrystalHD: Attempted to query non-existent timestamps.\n"); |
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return AV_NOPTS_VALUE; |
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} |
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/*
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* The first element is special-cased because we have to manipulate |
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* the head pointer rather than the previous element in the list. |
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*/ |
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if (priv->head->fake_timestamp == fake_timestamp) { |
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uint64_t reordered_opaque = node->reordered_opaque; |
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priv->head = node->next; |
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av_free(node); |
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if (!priv->head->next) |
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priv->tail = priv->head; |
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return reordered_opaque; |
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} |
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/*
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* The list is processed at arm's length so that we have the |
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* previous element available to rewrite its next pointer. |
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*/ |
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while (node->next) { |
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OpaqueList *next = node->next; |
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if (next->fake_timestamp == fake_timestamp) { |
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uint64_t reordered_opaque = next->reordered_opaque; |
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node->next = next->next; |
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av_free(next); |
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if (!node->next) |
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priv->tail = node; |
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return reordered_opaque; |
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} else { |
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node = next; |
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} |
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} |
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av_log(priv->avctx, AV_LOG_VERBOSE, |
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"CrystalHD: Couldn't match fake_timestamp.\n"); |
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return AV_NOPTS_VALUE; |
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} |
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/*****************************************************************************
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* Video decoder API function definitions |
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****************************************************************************/ |
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static void flush(AVCodecContext *avctx) |
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{ |
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CHDContext *priv = avctx->priv_data; |
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avctx->has_b_frames = 0; |
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priv->last_picture = -1; |
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priv->output_ready = 0; |
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priv->need_second_field = 0; |
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priv->skip_next_output = 0; |
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priv->decode_wait = BASE_WAIT; |
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if (priv->pic.data[0]) |
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avctx->release_buffer(avctx, &priv->pic); |
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/* Flush mode 4 flushes all software and hardware buffers. */ |
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DtsFlushInput(priv->dev, 4); |
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} |
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static av_cold int uninit(AVCodecContext *avctx) |
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{ |
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CHDContext *priv = avctx->priv_data; |
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HANDLE device; |
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device = priv->dev; |
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DtsStopDecoder(device); |
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DtsCloseDecoder(device); |
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DtsDeviceClose(device); |
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av_free(priv->sps_pps_buf); |
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if (priv->pic.data[0]) |
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avctx->release_buffer(avctx, &priv->pic); |
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if (priv->head) { |
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OpaqueList *node = priv->head; |
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while (node) { |
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OpaqueList *next = node->next; |
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av_free(node); |
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node = next; |
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} |
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} |
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return 0; |
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} |
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static av_cold int init(AVCodecContext *avctx) |
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{ |
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CHDContext* priv; |
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BC_STATUS ret; |
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BC_INFO_CRYSTAL version; |
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BC_INPUT_FORMAT format = { |
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.FGTEnable = FALSE, |
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.Progressive = TRUE, |
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.OptFlags = 0x80000000 | vdecFrameRate59_94 | 0x40, |
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.width = avctx->width, |
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.height = avctx->height, |
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}; |
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BC_MEDIA_SUBTYPE subtype; |
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uint32_t mode = DTS_PLAYBACK_MODE | |
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DTS_LOAD_FILE_PLAY_FW | |
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DTS_SKIP_TX_CHK_CPB | |
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DTS_PLAYBACK_DROP_RPT_MODE | |
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DTS_SINGLE_THREADED_MODE | |
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DTS_DFLT_RESOLUTION(vdecRESOLUTION_1080p23_976); |
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av_log(avctx, AV_LOG_VERBOSE, "CrystalHD Init for %s\n", |
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avctx->codec->name); |
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avctx->pix_fmt = PIX_FMT_YUYV422; |
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|
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/* Initialize the library */ |
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priv = avctx->priv_data; |
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priv->avctx = avctx; |
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priv->is_nal = avctx->extradata_size > 0 && *(avctx->extradata) == 1; |
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priv->last_picture = -1; |
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priv->decode_wait = BASE_WAIT; |
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subtype = id2subtype(priv, avctx->codec->id); |
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switch (subtype) { |
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case BC_MSUBTYPE_AVC1: |
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{ |
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uint8_t *dummy_p; |
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int dummy_int; |
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AVBitStreamFilterContext *bsfc; |
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|
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uint32_t orig_data_size = avctx->extradata_size; |
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uint8_t *orig_data = av_malloc(orig_data_size); |
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if (!orig_data) { |
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av_log(avctx, AV_LOG_ERROR, |
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"Failed to allocate copy of extradata\n"); |
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return AVERROR(ENOMEM); |
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} |
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memcpy(orig_data, avctx->extradata, orig_data_size); |
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|
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|
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bsfc = av_bitstream_filter_init("h264_mp4toannexb"); |
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if (!bsfc) { |
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av_log(avctx, AV_LOG_ERROR, |
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"Cannot open the h264_mp4toannexb BSF!\n"); |
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av_free(orig_data); |
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return AVERROR_BSF_NOT_FOUND; |
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} |
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av_bitstream_filter_filter(bsfc, avctx, NULL, &dummy_p, |
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&dummy_int, NULL, 0, 0); |
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av_bitstream_filter_close(bsfc); |
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|
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priv->sps_pps_buf = avctx->extradata; |
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priv->sps_pps_size = avctx->extradata_size; |
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avctx->extradata = orig_data; |
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avctx->extradata_size = orig_data_size; |
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|
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format.pMetaData = priv->sps_pps_buf; |
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format.metaDataSz = priv->sps_pps_size; |
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format.startCodeSz = (avctx->extradata[4] & 0x03) + 1; |
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} |
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break; |
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case BC_MSUBTYPE_H264: |
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format.startCodeSz = 4; |
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// Fall-through
|
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case BC_MSUBTYPE_VC1: |
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case BC_MSUBTYPE_WVC1: |
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case BC_MSUBTYPE_WMV3: |
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case BC_MSUBTYPE_WMVA: |
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case BC_MSUBTYPE_MPEG2VIDEO: |
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case BC_MSUBTYPE_DIVX: |
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case BC_MSUBTYPE_DIVX311: |
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format.pMetaData = avctx->extradata; |
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format.metaDataSz = avctx->extradata_size; |
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break; |
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default: |
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av_log(avctx, AV_LOG_ERROR, "CrystalHD: Unknown codec name\n"); |
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return AVERROR(EINVAL); |
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} |
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format.mSubtype = subtype; |
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|
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/* Get a decoder instance */ |
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av_log(avctx, AV_LOG_VERBOSE, "CrystalHD: starting up\n"); |
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// Initialize the Link and Decoder devices
|
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ret = DtsDeviceOpen(&priv->dev, mode); |
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if (ret != BC_STS_SUCCESS) { |
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av_log(avctx, AV_LOG_VERBOSE, "CrystalHD: DtsDeviceOpen failed\n"); |
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goto fail; |
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} |
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|
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ret = DtsCrystalHDVersion(priv->dev, &version); |
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if (ret != BC_STS_SUCCESS) { |
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av_log(avctx, AV_LOG_VERBOSE, |
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"CrystalHD: DtsCrystalHDVersion failed\n"); |
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goto fail; |
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} |
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priv->is_70012 = version.device == 0; |
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|
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if (priv->is_70012 && |
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(subtype == BC_MSUBTYPE_DIVX || subtype == BC_MSUBTYPE_DIVX311)) { |
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av_log(avctx, AV_LOG_VERBOSE, |
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"CrystalHD: BCM70012 doesn't support MPEG4-ASP/DivX/Xvid\n"); |
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goto fail; |
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} |
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|
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ret = DtsSetInputFormat(priv->dev, &format); |
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if (ret != BC_STS_SUCCESS) { |
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av_log(avctx, AV_LOG_ERROR, "CrystalHD: SetInputFormat failed\n"); |
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goto fail; |
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} |
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|
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ret = DtsOpenDecoder(priv->dev, BC_STREAM_TYPE_ES); |
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if (ret != BC_STS_SUCCESS) { |
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av_log(avctx, AV_LOG_ERROR, "CrystalHD: DtsOpenDecoder failed\n"); |
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goto fail; |
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} |
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|
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ret = DtsSetColorSpace(priv->dev, OUTPUT_MODE422_YUY2); |
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if (ret != BC_STS_SUCCESS) { |
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av_log(avctx, AV_LOG_ERROR, "CrystalHD: DtsSetColorSpace failed\n"); |
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goto fail; |
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} |
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ret = DtsStartDecoder(priv->dev); |
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if (ret != BC_STS_SUCCESS) { |
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av_log(avctx, AV_LOG_ERROR, "CrystalHD: DtsStartDecoder failed\n"); |
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goto fail; |
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} |
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ret = DtsStartCapture(priv->dev); |
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if (ret != BC_STS_SUCCESS) { |
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av_log(avctx, AV_LOG_ERROR, "CrystalHD: DtsStartCapture failed\n"); |
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goto fail; |
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} |
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|
||||
av_log(avctx, AV_LOG_VERBOSE, "CrystalHD: Init complete.\n"); |
||||
|
||||
return 0; |
||||
|
||||
fail: |
||||
uninit(avctx); |
||||
return -1; |
||||
} |
||||
|
||||
|
||||
/*
|
||||
* The CrystalHD doesn't report interlaced H.264 content in a way that allows |
||||
* us to distinguish between specific cases that require different handling. |
||||
* So, for now, we have to hard-code the behaviour we want. |
||||
* |
||||
* The default behaviour is to assume MBAFF with input and output fieldpairs. |
||||
* |
||||
* Define ASSUME_PAFF_OVER_MBAFF to treat input as PAFF with separate input |
||||
* and output fields. |
||||
* |
||||
* Define ASSUME_TWO_INPUTS_ONE_OUTPUT to treat input as separate fields but |
||||
* output as a single fieldpair. |
||||
* |
||||
* Define both to mess up your playback. |
||||
*/ |
||||
#define ASSUME_PAFF_OVER_MBAFF 0 |
||||
#define ASSUME_TWO_INPUTS_ONE_OUTPUT 0 |
||||
static inline CopyRet copy_frame(AVCodecContext *avctx, |
||||
BC_DTS_PROC_OUT *output, |
||||
void *data, int *data_size, |
||||
uint8_t second_field) |
||||
{ |
||||
BC_STATUS ret; |
||||
BC_DTS_STATUS decoder_status; |
||||
uint8_t is_paff; |
||||
uint8_t next_frame_same; |
||||
uint8_t interlaced; |
||||
|
||||
CHDContext *priv = avctx->priv_data; |
||||
|
||||
uint8_t bottom_field = (output->PicInfo.flags & VDEC_FLAG_BOTTOMFIELD) == |
||||
VDEC_FLAG_BOTTOMFIELD; |
||||
uint8_t bottom_first = !!(output->PicInfo.flags & VDEC_FLAG_BOTTOM_FIRST); |
||||
|
||||
int width = output->PicInfo.width; |
||||
int height = output->PicInfo.height; |
||||
int bwidth; |
||||
uint8_t *src = output->Ybuff; |
||||
int sStride; |
||||
uint8_t *dst; |
||||
int dStride; |
||||
|
||||
ret = DtsGetDriverStatus(priv->dev, &decoder_status); |
||||
if (ret != BC_STS_SUCCESS) { |
||||
av_log(avctx, AV_LOG_ERROR, |
||||
"CrystalHD: GetDriverStatus failed: %u\n", ret); |
||||
return RET_ERROR; |
||||
} |
||||
|
||||
is_paff = ASSUME_PAFF_OVER_MBAFF || |
||||
!(output->PicInfo.flags & VDEC_FLAG_UNKNOWN_SRC); |
||||
next_frame_same = output->PicInfo.picture_number == |
||||
(decoder_status.picNumFlags & ~0x40000000); |
||||
interlaced = ((output->PicInfo.flags & |
||||
VDEC_FLAG_INTERLACED_SRC) && is_paff) || |
||||
next_frame_same || bottom_field || second_field; |
||||
|
||||
av_log(avctx, AV_LOG_VERBOSE, "CrystalHD: next_frame_same: %u | %u | %u\n", |
||||
next_frame_same, output->PicInfo.picture_number, |
||||
decoder_status.picNumFlags & ~0x40000000); |
||||
|
||||
if (priv->pic.data[0] && !priv->need_second_field) |
||||
avctx->release_buffer(avctx, &priv->pic); |
||||
|
||||
priv->need_second_field = interlaced && !priv->need_second_field; |
||||
|
||||
priv->pic.buffer_hints = FF_BUFFER_HINTS_VALID | FF_BUFFER_HINTS_PRESERVE | |
||||
FF_BUFFER_HINTS_REUSABLE; |
||||
if (!priv->pic.data[0]) { |
||||
if (avctx->get_buffer(avctx, &priv->pic) < 0) { |
||||
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n"); |
||||
return RET_ERROR; |
||||
} |
||||
} |
||||
|
||||
bwidth = av_image_get_linesize(avctx->pix_fmt, width, 0); |
||||
if (priv->is_70012) { |
||||
int pStride; |
||||
|
||||
if (width <= 720) |
||||
pStride = 720; |
||||
else if (width <= 1280) |
||||
pStride = 1280; |
||||
else if (width <= 1080) |
||||
pStride = 1080; |
||||
sStride = av_image_get_linesize(avctx->pix_fmt, pStride, 0); |
||||
} else { |
||||
sStride = bwidth; |
||||
} |
||||
|
||||
dStride = priv->pic.linesize[0]; |
||||
dst = priv->pic.data[0]; |
||||
|
||||
av_log(priv->avctx, AV_LOG_VERBOSE, "CrystalHD: Copying out frame\n"); |
||||
|
||||
if (interlaced) { |
||||
int dY = 0; |
||||
int sY = 0; |
||||
|
||||
height /= 2; |
||||
if (bottom_field) { |
||||
av_log(priv->avctx, AV_LOG_VERBOSE, "Interlaced: bottom field\n"); |
||||
dY = 1; |
||||
} else { |
||||
av_log(priv->avctx, AV_LOG_VERBOSE, "Interlaced: top field\n"); |
||||
dY = 0; |
||||
} |
||||
|
||||
for (sY = 0; sY < height; dY++, sY++) { |
||||
memcpy(&(dst[dY * dStride]), &(src[sY * sStride]), bwidth); |
||||
if (interlaced) |
||||
dY++; |
||||
} |
||||
} else { |
||||
av_image_copy_plane(dst, dStride, src, sStride, bwidth, height); |
||||
} |
||||
|
||||
priv->pic.interlaced_frame = interlaced; |
||||
if (interlaced) |
||||
priv->pic.top_field_first = !bottom_first; |
||||
|
||||
if (output->PicInfo.timeStamp != 0) { |
||||
priv->pic.pkt_pts = opaque_list_pop(priv, output->PicInfo.timeStamp); |
||||
av_log(avctx, AV_LOG_VERBOSE, "output \"pts\": %"PRIu64"\n", |
||||
priv->pic.pkt_pts); |
||||
} |
||||
|
||||
if (!priv->need_second_field) { |
||||
*data_size = sizeof(AVFrame); |
||||
*(AVFrame *)data = priv->pic; |
||||
} |
||||
|
||||
if (ASSUME_TWO_INPUTS_ONE_OUTPUT && |
||||
output->PicInfo.flags & VDEC_FLAG_UNKNOWN_SRC) { |
||||
av_log(priv->avctx, AV_LOG_VERBOSE, "Fieldpair from two packets.\n"); |
||||
return RET_SKIP_NEXT_COPY; |
||||
} |
||||
|
||||
return RET_OK; |
||||
} |
||||
|
||||
|
||||
static inline CopyRet receive_frame(AVCodecContext *avctx, |
||||
void *data, int *data_size, |
||||
uint8_t second_field) |
||||
{ |
||||
BC_STATUS ret; |
||||
BC_DTS_PROC_OUT output = { |
||||
.PicInfo.width = avctx->width, |
||||
.PicInfo.height = avctx->height, |
||||
}; |
||||
CHDContext *priv = avctx->priv_data; |
||||
HANDLE dev = priv->dev; |
||||
|
||||
*data_size = 0; |
||||
|
||||
// Request decoded data from the driver
|
||||
ret = DtsProcOutputNoCopy(dev, OUTPUT_PROC_TIMEOUT, &output); |
||||
if (ret == BC_STS_FMT_CHANGE) { |
||||
av_log(avctx, AV_LOG_VERBOSE, "CrystalHD: Initial format change\n"); |
||||
avctx->width = output.PicInfo.width; |
||||
avctx->height = output.PicInfo.height; |
||||
return RET_COPY_AGAIN; |
||||
} else if (ret == BC_STS_SUCCESS) { |
||||
int copy_ret = -1; |
||||
if (output.PoutFlags & BC_POUT_FLAGS_PIB_VALID) { |
||||
if (priv->last_picture == -1) { |
||||
/*
|
||||
* Init to one less, so that the incrementing code doesn't |
||||
* need to be special-cased. |
||||
*/ |
||||
priv->last_picture = output.PicInfo.picture_number - 1; |
||||
} |
||||
|
||||
if (avctx->codec->id == CODEC_ID_MPEG4 && |
||||
output.PicInfo.timeStamp == 0) { |
||||
av_log(avctx, AV_LOG_VERBOSE, |
||||
"CrystalHD: Not returning packed frame twice.\n"); |
||||
priv->last_picture++; |
||||
DtsReleaseOutputBuffs(dev, NULL, FALSE); |
||||
return RET_COPY_AGAIN; |
||||
} |
||||
|
||||
print_frame_info(priv, &output); |
||||
|
||||
if (priv->last_picture + 1 < output.PicInfo.picture_number) { |
||||
av_log(avctx, AV_LOG_WARNING, |
||||
"CrystalHD: Picture Number discontinuity\n"); |
||||
/*
|
||||
* Have we lost frames? If so, we need to shrink the |
||||
* pipeline length appropriately. |
||||
* |
||||
* XXX: I have no idea what the semantics of this situation |
||||
* are so I don't even know if we've lost frames or which |
||||
* ones. |
||||
* |
||||
* In any case, only warn the first time. |
||||
*/ |
||||
priv->last_picture = output.PicInfo.picture_number - 1; |
||||
} |
||||
|
||||
copy_ret = copy_frame(avctx, &output, data, data_size, second_field); |
||||
if (*data_size > 0) { |
||||
avctx->has_b_frames--; |
||||
priv->last_picture++; |
||||
av_log(avctx, AV_LOG_VERBOSE, "CrystalHD: Pipeline length: %u\n", |
||||
avctx->has_b_frames); |
||||
} |
||||
} else { |
||||
/*
|
||||
* An invalid frame has been consumed. |
||||
*/ |
||||
av_log(avctx, AV_LOG_ERROR, "CrystalHD: ProcOutput succeeded with " |
||||
"invalid PIB\n"); |
||||
avctx->has_b_frames--; |
||||
copy_ret = RET_OK; |
||||
} |
||||
DtsReleaseOutputBuffs(dev, NULL, FALSE); |
||||
|
||||
return copy_ret; |
||||
} else if (ret == BC_STS_BUSY) { |
||||
return RET_COPY_AGAIN; |
||||
} else { |
||||
av_log(avctx, AV_LOG_ERROR, "CrystalHD: ProcOutput failed %d\n", ret); |
||||
return RET_ERROR; |
||||
} |
||||
} |
||||
|
||||
|
||||
static int decode(AVCodecContext *avctx, void *data, int *data_size, AVPacket *avpkt) |
||||
{ |
||||
BC_STATUS ret; |
||||
BC_DTS_STATUS decoder_status; |
||||
CopyRet rec_ret; |
||||
CHDContext *priv = avctx->priv_data; |
||||
HANDLE dev = priv->dev; |
||||
int len = avpkt->size; |
||||
|
||||
av_log(avctx, AV_LOG_VERBOSE, "CrystalHD: decode_frame\n"); |
||||
|
||||
if (len) { |
||||
int32_t tx_free = (int32_t)DtsTxFreeSize(dev); |
||||
if (len < tx_free - 1024) { |
||||
/*
|
||||
* Despite being notionally opaque, either libcrystalhd or |
||||
* the hardware itself will mangle pts values that are too |
||||
* small or too large. The docs claim it should be in units |
||||
* of 100ns. Given that we're nominally dealing with a black |
||||
* box on both sides, any transform we do has no guarantee of |
||||
* avoiding mangling so we need to build a mapping to values |
||||
* we know will not be mangled. |
||||
*/ |
||||
uint64_t pts = opaque_list_push(priv, avctx->pkt->pts); |
||||
if (!pts) { |
||||
return AVERROR(ENOMEM); |
||||
} |
||||
av_log(priv->avctx, AV_LOG_VERBOSE, |
||||
"input \"pts\": %"PRIu64"\n", pts); |
||||
ret = DtsProcInput(dev, avpkt->data, len, pts, 0); |
||||
if (ret == BC_STS_BUSY) { |
||||
av_log(avctx, AV_LOG_WARNING, |
||||
"CrystalHD: ProcInput returned busy\n"); |
||||
usleep(BASE_WAIT); |
||||
return AVERROR(EBUSY); |
||||
} else if (ret != BC_STS_SUCCESS) { |
||||
av_log(avctx, AV_LOG_ERROR, |
||||
"CrystalHD: ProcInput failed: %u\n", ret); |
||||
return -1; |
||||
} |
||||
avctx->has_b_frames++; |
||||
} else { |
||||
av_log(avctx, AV_LOG_WARNING, "CrystalHD: Input buffer full\n"); |
||||
len = 0; // We didn't consume any bytes.
|
||||
} |
||||
} else { |
||||
av_log(avctx, AV_LOG_INFO, "CrystalHD: No more input data\n"); |
||||
} |
||||
|
||||
if (priv->skip_next_output) { |
||||
av_log(avctx, AV_LOG_VERBOSE, "CrystalHD: Skipping next output.\n"); |
||||
priv->skip_next_output = 0; |
||||
avctx->has_b_frames--; |
||||
return len; |
||||
} |
||||
|
||||
ret = DtsGetDriverStatus(dev, &decoder_status); |
||||
if (ret != BC_STS_SUCCESS) { |
||||
av_log(avctx, AV_LOG_ERROR, "CrystalHD: GetDriverStatus failed\n"); |
||||
return -1; |
||||
} |
||||
|
||||
/*
|
||||
* No frames ready. Don't try to extract. |
||||
* |
||||
* Empirical testing shows that ReadyListCount can be a damn lie, |
||||
* and ProcOut still fails when count > 0. The same testing showed |
||||
* that two more iterations were needed before ProcOutput would |
||||
* succeed. |
||||
*/ |
||||
if (priv->output_ready < 2) { |
||||
if (decoder_status.ReadyListCount != 0) |
||||
priv->output_ready++; |
||||
usleep(BASE_WAIT); |
||||
av_log(avctx, AV_LOG_INFO, "CrystalHD: Filling pipeline.\n"); |
||||
return len; |
||||
} else if (decoder_status.ReadyListCount == 0) { |
||||
/*
|
||||
* After the pipeline is established, if we encounter a lack of frames |
||||
* that probably means we're not giving the hardware enough time to |
||||
* decode them, so start increasing the wait time at the end of a |
||||
* decode call. |
||||
*/ |
||||
usleep(BASE_WAIT); |
||||
priv->decode_wait += WAIT_UNIT; |
||||
av_log(avctx, AV_LOG_INFO, "CrystalHD: No frames ready. Returning\n"); |
||||
return len; |
||||
} |
||||
|
||||
do { |
||||
rec_ret = receive_frame(avctx, data, data_size, 0); |
||||
if (rec_ret == 0 && *data_size == 0) { |
||||
if (avctx->codec->id == CODEC_ID_H264) { |
||||
/*
|
||||
* This case is for when the encoded fields are stored |
||||
* separately and we get a separate avpkt for each one. To keep |
||||
* the pipeline stable, we should return nothing and wait for |
||||
* the next time round to grab the second field. |
||||
* H.264 PAFF is an example of this. |
||||
*/ |
||||
av_log(avctx, AV_LOG_VERBOSE, "Returning after first field.\n"); |
||||
avctx->has_b_frames--; |
||||
} else { |
||||
/*
|
||||
* This case is for when the encoded fields are stored in a |
||||
* single avpkt but the hardware returns then separately. Unless |
||||
* we grab the second field before returning, we'll slip another |
||||
* frame in the pipeline and if that happens a lot, we're sunk. |
||||
* So we have to get that second field now. |
||||
* Interlaced mpeg2 and vc1 are examples of this. |
||||
*/ |
||||
av_log(avctx, AV_LOG_VERBOSE, "Trying to get second field.\n"); |
||||
while (1) { |
||||
usleep(priv->decode_wait); |
||||
ret = DtsGetDriverStatus(dev, &decoder_status); |
||||
if (ret == BC_STS_SUCCESS && |
||||
decoder_status.ReadyListCount > 0) { |
||||
rec_ret = receive_frame(avctx, data, data_size, 1); |
||||
if ((rec_ret == 0 && *data_size > 0) || |
||||
rec_ret == RET_ERROR) |
||||
break; |
||||
} |
||||
} |
||||
av_log(avctx, AV_LOG_VERBOSE, "CrystalHD: Got second field.\n"); |
||||
} |
||||
} else if (rec_ret == RET_SKIP_NEXT_COPY) { |
||||
/*
|
||||
* Two input packets got turned into a field pair. Gawd. |
||||
*/ |
||||
av_log(avctx, AV_LOG_VERBOSE, |
||||
"Don't output on next decode call.\n"); |
||||
priv->skip_next_output = 1; |
||||
} |
||||
/*
|
||||
* If rec_ret == RET_COPY_AGAIN, that means that either we just handled |
||||
* a FMT_CHANGE event and need to go around again for the actual frame, |
||||
* we got a busy status and need to try again, or we're dealing with |
||||
* packed b-frames, where the hardware strangely returns the packed |
||||
* p-frame twice. We choose to keep the second copy as it carries the |
||||
* valid pts. |
||||
*/ |
||||
} while (rec_ret == RET_COPY_AGAIN); |
||||
usleep(priv->decode_wait); |
||||
return len; |
||||
} |
||||
|
||||
|
||||
#if CONFIG_H264_CRYSTALHD_DECODER |
||||
AVCodec ff_h264_crystalhd_decoder = { |
||||
.name = "h264_crystalhd", |
||||
.type = AVMEDIA_TYPE_VIDEO, |
||||
.id = CODEC_ID_H264, |
||||
.priv_data_size = sizeof(CHDContext), |
||||
.init = init, |
||||
.close = uninit, |
||||
.decode = decode, |
||||
.capabilities = CODEC_CAP_DR1 | CODEC_CAP_DELAY | CODEC_CAP_EXPERIMENTAL, |
||||
.flush = flush, |
||||
.long_name = NULL_IF_CONFIG_SMALL("H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 (CrystalHD acceleration)"), |
||||
.pix_fmts = (const enum PixelFormat[]){PIX_FMT_YUYV422, PIX_FMT_NONE}, |
||||
}; |
||||
#endif |
||||
|
||||
#if CONFIG_MPEG2_CRYSTALHD_DECODER |
||||
AVCodec ff_mpeg2_crystalhd_decoder = { |
||||
.name = "mpeg2_crystalhd", |
||||
.type = AVMEDIA_TYPE_VIDEO, |
||||
.id = CODEC_ID_MPEG2VIDEO, |
||||
.priv_data_size = sizeof(CHDContext), |
||||
.init = init, |
||||
.close = uninit, |
||||
.decode = decode, |
||||
.capabilities = CODEC_CAP_DR1 | CODEC_CAP_DELAY | CODEC_CAP_EXPERIMENTAL, |
||||
.flush = flush, |
||||
.long_name = NULL_IF_CONFIG_SMALL("MPEG-2 Video (CrystalHD acceleration)"), |
||||
.pix_fmts = (const enum PixelFormat[]){PIX_FMT_YUYV422, PIX_FMT_NONE}, |
||||
}; |
||||
#endif |
||||
|
||||
#if CONFIG_MPEG4_CRYSTALHD_DECODER |
||||
AVCodec ff_mpeg4_crystalhd_decoder = { |
||||
.name = "mpeg4_crystalhd", |
||||
.type = AVMEDIA_TYPE_VIDEO, |
||||
.id = CODEC_ID_MPEG4, |
||||
.priv_data_size = sizeof(CHDContext), |
||||
.init = init, |
||||
.close = uninit, |
||||
.decode = decode, |
||||
.capabilities = CODEC_CAP_DR1 | CODEC_CAP_DELAY | CODEC_CAP_EXPERIMENTAL, |
||||
.flush = flush, |
||||
.long_name = NULL_IF_CONFIG_SMALL("MPEG-4 Part 2 (CrystalHD acceleration)"), |
||||
.pix_fmts = (const enum PixelFormat[]){PIX_FMT_YUYV422, PIX_FMT_NONE}, |
||||
}; |
||||
#endif |
||||
|
||||
#if CONFIG_MSMPEG4_CRYSTALHD_DECODER |
||||
AVCodec ff_msmpeg4_crystalhd_decoder = { |
||||
.name = "msmpeg4_crystalhd", |
||||
.type = AVMEDIA_TYPE_VIDEO, |
||||
.id = CODEC_ID_MSMPEG4V3, |
||||
.priv_data_size = sizeof(CHDContext), |
||||
.init = init, |
||||
.close = uninit, |
||||
.decode = decode, |
||||
.capabilities = CODEC_CAP_DR1 | CODEC_CAP_DELAY | CODEC_CAP_EXPERIMENTAL, |
||||
.flush = flush, |
||||
.long_name = NULL_IF_CONFIG_SMALL("MPEG-4 Part 2 Microsoft variant version 3 (CrystalHD acceleration)"), |
||||
.pix_fmts = (const enum PixelFormat[]){PIX_FMT_YUYV422, PIX_FMT_NONE}, |
||||
}; |
||||
#endif |
||||
|
||||
#if CONFIG_VC1_CRYSTALHD_DECODER |
||||
AVCodec ff_vc1_crystalhd_decoder = { |
||||
.name = "vc1_crystalhd", |
||||
.type = AVMEDIA_TYPE_VIDEO, |
||||
.id = CODEC_ID_VC1, |
||||
.priv_data_size = sizeof(CHDContext), |
||||
.init = init, |
||||
.close = uninit, |
||||
.decode = decode, |
||||
.capabilities = CODEC_CAP_DR1 | CODEC_CAP_DELAY | CODEC_CAP_EXPERIMENTAL, |
||||
.flush = flush, |
||||
.long_name = NULL_IF_CONFIG_SMALL("SMPTE VC-1 (CrystalHD acceleration)"), |
||||
.pix_fmts = (const enum PixelFormat[]){PIX_FMT_YUYV422, PIX_FMT_NONE}, |
||||
}; |
||||
#endif |
||||
|
||||
#if CONFIG_WMV3_CRYSTALHD_DECODER |
||||
AVCodec ff_wmv3_crystalhd_decoder = { |
||||
.name = "wmv3_crystalhd", |
||||
.type = AVMEDIA_TYPE_VIDEO, |
||||
.id = CODEC_ID_WMV3, |
||||
.priv_data_size = sizeof(CHDContext), |
||||
.init = init, |
||||
.close = uninit, |
||||
.decode = decode, |
||||
.capabilities = CODEC_CAP_DR1 | CODEC_CAP_DELAY | CODEC_CAP_EXPERIMENTAL, |
||||
.flush = flush, |
||||
.long_name = NULL_IF_CONFIG_SMALL("Windows Media Video 9 (CrystalHD acceleration)"), |
||||
.pix_fmts = (const enum PixelFormat[]){PIX_FMT_YUYV422, PIX_FMT_NONE}, |
||||
}; |
||||
#endif |
||||
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