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Code Issues Releases Activity

qsvdec_h2645: switch to the new generic filtering mechanism

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Drop the internal manual conversion from the MP4 format to Annex B.
This commit is contained in:
Anton Khirnov 2016-11-13 09:09:06 +01:00
parent 972c71e9cb
commit 8fb4210ad8
1 changed files with 11 additions and 63 deletions
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74
libavcodec/qsvdec_h2645.c
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@ -49,12 +49,9 @@ typedef struct QSVH2645Context {
int load_plugin;
// the filter for converting to Annex B
AVBSFContext *bsf;
AVFifoBuffer *packet_fifo;
AVPacket pkt_filtered;
AVPacket buffer_pkt;
} QSVH2645Context;
static void qsv_clear_buffers(QSVH2645Context *s)
@ -65,9 +62,7 @@ static void qsv_clear_buffers(QSVH2645Context *s)
av_packet_unref(&pkt);
}
av_bsf_free(&s->bsf);
av_packet_unref(&s->pkt_filtered);
av_packet_unref(&s->buffer_pkt);
}
static av_cold int qsv_decode_close(AVCodecContext *avctx)
@ -120,37 +115,6 @@ fail:
return ret;
}
static int qsv_init_bsf(AVCodecContext *avctx, QSVH2645Context *s)
{
const char *filter_name = avctx->codec_id == AV_CODEC_ID_HEVC ?
"hevc_mp4toannexb" : "h264_mp4toannexb";
const AVBitStreamFilter *filter;
int ret;
if (s->bsf)
return 0;
filter = av_bsf_get_by_name(filter_name);
if (!filter)
return AVERROR_BUG;
ret = av_bsf_alloc(filter, &s->bsf);
if (ret < 0)
return ret;
ret = avcodec_parameters_from_context(s->bsf->par_in, avctx);
if (ret < 0)
return ret;
s->bsf->time_base_in = avctx->time_base;
ret = av_bsf_init(s->bsf);
if (ret < 0)
return ret;
return ret;
}
static int qsv_decode_frame(AVCodecContext *avctx, void *data,
int *got_frame, AVPacket *avpkt)
{
@ -158,11 +122,6 @@ static int qsv_decode_frame(AVCodecContext *avctx, void *data,
AVFrame *frame = data;
int ret;
/* make sure the bitstream filter is initialized */
ret = qsv_init_bsf(avctx, s);
if (ret < 0)
return ret;
/* buffer the input packet */
if (avpkt->size) {
AVPacket input_ref = { 0 };
@ -182,36 +141,23 @@ static int qsv_decode_frame(AVCodecContext *avctx, void *data,
/* process buffered data */
while (!*got_frame) {
/* prepare the input data -- convert to Annex B if needed */
if (s->pkt_filtered.size <= 0) {
AVPacket input_ref;
/* prepare the input data */
if (s->buffer_pkt.size <= 0) {
/* no more data */
if (av_fifo_size(s->packet_fifo) < sizeof(AVPacket))
return avpkt->size ? avpkt->size : ff_qsv_process_data(avctx, &s->qsv, frame, got_frame, avpkt);
av_packet_unref(&s->pkt_filtered);
av_packet_unref(&s->buffer_pkt);
av_fifo_generic_read(s->packet_fifo, &input_ref, sizeof(input_ref), NULL);
ret = av_bsf_send_packet(s->bsf, &input_ref);
if (ret < 0) {
av_packet_unref(&input_ref);
return ret;
}
ret = av_bsf_receive_packet(s->bsf, &s->pkt_filtered);
if (ret < 0)
av_packet_move_ref(&s->pkt_filtered, &input_ref);
else
av_packet_unref(&input_ref);
av_fifo_generic_read(s->packet_fifo, &s->buffer_pkt, sizeof(s->buffer_pkt), NULL);
}
ret = ff_qsv_process_data(avctx, &s->qsv, frame, got_frame, &s->pkt_filtered);
ret = ff_qsv_process_data(avctx, &s->qsv, frame, got_frame, &s->buffer_pkt);
if (ret < 0)
return ret;
s->pkt_filtered.size -= ret;
s->pkt_filtered.data += ret;
s->buffer_pkt.size -= ret;
s->buffer_pkt.data += ret;
}
return avpkt->size;
@ -274,6 +220,7 @@ AVCodec ff_hevc_qsv_decoder = {
AV_PIX_FMT_P010,
AV_PIX_FMT_QSV,
AV_PIX_FMT_NONE },
.bsfs = "hevc_mp4toannexb",
};
#endif
@ -315,5 +262,6 @@ AVCodec ff_h264_qsv_decoder = {
AV_PIX_FMT_P010,
AV_PIX_FMT_QSV,
AV_PIX_FMT_NONE },
.bsfs = "h264_mp4toannexb",
};
#endif