Message ID | 20230620141608.31759-8-anton@khirnov.net |
---|---|
State | New |
Headers | show |
Series | [FFmpeg-devel,1/9] lavc: add a header for internal generic-layer APIs | expand |
Context | Check | Description |
---|---|---|
yinshiyou/make_loongarch64 | success | Make finished |
yinshiyou/make_fate_loongarch64 | fail | Make fate failed |
andriy/make_x86 | success | Make finished |
andriy/make_fate_x86 | fail | Make fate failed |
On 6/20/2023 11:16 AM, Anton Khirnov wrote: > Do it from ff_decode_get_packet() rather than from > avcodec_send_packet(). This way all nontrivial stages of the decoding > pipeline (i.e. other than just placing a packet at its entrance) are > pull-based rather than a mix of push an pull. > --- > libavcodec/decode.c | 36 ++++++++++++++++++++++++++---------- > 1 file changed, 26 insertions(+), 10 deletions(-) > > diff --git a/libavcodec/decode.c b/libavcodec/decode.c > index c61ce74fb8..8d892432be 100644 > --- a/libavcodec/decode.c > +++ b/libavcodec/decode.c > @@ -193,14 +193,11 @@ fail: > return ret; > } > > -int ff_decode_get_packet(AVCodecContext *avctx, AVPacket *pkt) > +static int decode_get_packet(AVCodecContext *avctx, AVPacket *pkt) > { > AVCodecInternal *avci = avctx->internal; > int ret; > > - if (avci->draining) > - return AVERROR_EOF; > - > ret = av_bsf_receive_packet(avci->bsf, pkt); > if (ret == AVERROR_EOF) > avci->draining = 1; > @@ -223,6 +220,31 @@ finish: > return ret; > } > > +int ff_decode_get_packet(AVCodecContext *avctx, AVPacket *pkt) > +{ > + AVCodecInternal *avci = avctx->internal; > + > + if (avci->draining) > + return AVERROR_EOF; > + > + while (1) { > + int ret = decode_get_packet(avctx, pkt); > + if (ret == AVERROR(EAGAIN) && > + (avci->buffer_pkt->data || avci->buffer_pkt->side_data_elems || nit: Since i removed the IS_EMPTY() macro recently from this file, you could move the one in bsf.c into packet_internal.h, rename it to something like AVPACKET_IS_EMPTY(), and use it here. > + avci->d->draining_started)) { > + ret = av_bsf_send_packet(avci->bsf, avci->buffer_pkt); > + if (ret < 0) { > + av_packet_unref(avci->buffer_pkt); > + return ret; > + } > + > + continue; > + } > + > + return ret; > + } > +} > + > /** > * Attempt to guess proper monotonic timestamps for decoded video frames > * which might have incorrect times. Input timestamps may wrap around, in > @@ -643,12 +665,6 @@ int attribute_align_arg avcodec_send_packet(AVCodecContext *avctx, const AVPacke > } else > avci->d->draining_started = 1; > > - ret = av_bsf_send_packet(avci->bsf, avci->buffer_pkt); > - if (ret < 0) { > - av_packet_unref(avci->buffer_pkt); > - return ret; > - } > - > if (!avci->buffer_frame->buf[0]) { > ret = decode_receive_frame_internal(avctx, avci->buffer_frame); > if (ret < 0 && ret != AVERROR(EAGAIN) && ret != AVERROR_EOF)
diff --git a/libavcodec/decode.c b/libavcodec/decode.c index c61ce74fb8..8d892432be 100644 --- a/libavcodec/decode.c +++ b/libavcodec/decode.c @@ -193,14 +193,11 @@ fail: return ret; } -int ff_decode_get_packet(AVCodecContext *avctx, AVPacket *pkt) +static int decode_get_packet(AVCodecContext *avctx, AVPacket *pkt) { AVCodecInternal *avci = avctx->internal; int ret; - if (avci->draining) - return AVERROR_EOF; - ret = av_bsf_receive_packet(avci->bsf, pkt); if (ret == AVERROR_EOF) avci->draining = 1; @@ -223,6 +220,31 @@ finish: return ret; } +int ff_decode_get_packet(AVCodecContext *avctx, AVPacket *pkt) +{ + AVCodecInternal *avci = avctx->internal; + + if (avci->draining) + return AVERROR_EOF; + + while (1) { + int ret = decode_get_packet(avctx, pkt); + if (ret == AVERROR(EAGAIN) && + (avci->buffer_pkt->data || avci->buffer_pkt->side_data_elems || + avci->d->draining_started)) { + ret = av_bsf_send_packet(avci->bsf, avci->buffer_pkt); + if (ret < 0) { + av_packet_unref(avci->buffer_pkt); + return ret; + } + + continue; + } + + return ret; + } +} + /** * Attempt to guess proper monotonic timestamps for decoded video frames * which might have incorrect times. Input timestamps may wrap around, in @@ -643,12 +665,6 @@ int attribute_align_arg avcodec_send_packet(AVCodecContext *avctx, const AVPacke } else avci->d->draining_started = 1; - ret = av_bsf_send_packet(avci->bsf, avci->buffer_pkt); - if (ret < 0) { - av_packet_unref(avci->buffer_pkt); - return ret; - } - if (!avci->buffer_frame->buf[0]) { ret = decode_receive_frame_internal(avctx, avci->buffer_frame); if (ret < 0 && ret != AVERROR(EAGAIN) && ret != AVERROR_EOF)