960 lines
34 KiB
C
960 lines
34 KiB
C
/*
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* - CrystalHD decoder module -
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*
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* Copyright(C) 2010,2011 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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/* 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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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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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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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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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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/* 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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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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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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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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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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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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}
|
|
|
|
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);
|
|
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
|