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Code Issues Releases Activity

avcodec/libjxldec: use internal AVFrame as buffered space

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Before this commit, the decoder erroneously assumes that the AVFrame
passed to the receive_frame is the same one each time. Now it keeps an
internal AVFrame to write into, and copies it over when it's done.

Signed-off-by: Leo Izen <leo.izen@gmail.com>
This commit is contained in:
Leo Izen 2023-07-10 18:05:09 -04:00
parent 245910d5c9
commit 7a69f7312e
No known key found for this signature in database
GPG Key ID: 5A71C331FD2FA19A
1 changed files with 21 additions and 16 deletions
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37
libavcodec/libjxldec.c
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@ -58,6 +58,7 @@ typedef struct LibJxlDecodeContext {
int64_t frame_duration;
int prev_is_last;
AVRational timebase;
AVFrame *frame;
} LibJxlDecodeContext;
static int libjxl_init_jxl_decoder(AVCodecContext *avctx)
@ -104,6 +105,9 @@ static av_cold int libjxl_decode_init(AVCodecContext *avctx)
ctx->avpkt = avctx->internal->in_pkt;
ctx->pts = 0;
ctx->frame = av_frame_alloc();
if (!ctx->frame)
return AVERROR(ENOMEM);
return libjxl_init_jxl_decoder(avctx);
}
@ -406,10 +410,6 @@ static int libjxl_receive_frame(AVCodecContext *avctx, AVFrame *frame)
return AVERROR_INVALIDDATA;
case JXL_DEC_NEED_MORE_INPUT:
av_log(avctx, AV_LOG_DEBUG, "NEED_MORE_INPUT event emitted\n");
if (!pkt->size) {
av_packet_unref(pkt);
return AVERROR(EAGAIN);
}
continue;
case JXL_DEC_BASIC_INFO:
av_log(avctx, AV_LOG_DEBUG, "BASIC_INFO event emitted\n");
@ -438,16 +438,19 @@ static int libjxl_receive_frame(AVCodecContext *avctx, AVFrame *frame)
continue;
case JXL_DEC_COLOR_ENCODING:
av_log(avctx, AV_LOG_DEBUG, "COLOR_ENCODING event emitted\n");
if ((ret = libjxl_color_encoding_event(avctx, frame)) < 0)
ret = libjxl_color_encoding_event(avctx, ctx->frame);
if (ret < 0)
return ret;
continue;
case JXL_DEC_NEED_IMAGE_OUT_BUFFER:
av_log(avctx, AV_LOG_DEBUG, "NEED_IMAGE_OUT_BUFFER event emitted\n");
if ((ret = ff_get_buffer(avctx, frame, 0)) < 0)
ret = ff_get_buffer(avctx, ctx->frame, 0);
if (ret < 0)
return ret;
ctx->jxl_pixfmt.align = frame->linesize[0];
if (JxlDecoderSetImageOutBuffer(ctx->decoder, &ctx->jxl_pixfmt, frame->data[0], frame->buf[0]->size)
!= JXL_DEC_SUCCESS) {
ctx->jxl_pixfmt.align = ctx->frame->linesize[0];
if (JxlDecoderSetImageOutBuffer(ctx->decoder, &ctx->jxl_pixfmt,
ctx->frame->data[0], ctx->frame->buf[0]->size)
!= JXL_DEC_SUCCESS) {
av_log(avctx, AV_LOG_ERROR, "Bad libjxl dec need image out buffer event\n");
return AVERROR_EXTERNAL;
}
@ -461,8 +464,8 @@ static int libjxl_receive_frame(AVCodecContext *avctx, AVFrame *frame)
case JXL_DEC_FRAME:
av_log(avctx, AV_LOG_DEBUG, "FRAME event emitted\n");
if (!ctx->basic_info.have_animation || ctx->prev_is_last) {
frame->pict_type = AV_PICTURE_TYPE_I;
frame->flags |= AV_FRAME_FLAG_KEY;
ctx->frame->pict_type = AV_PICTURE_TYPE_I;
ctx->frame->flags |= AV_FRAME_FLAG_KEY;
}
if (ctx->basic_info.have_animation) {
JxlFrameHeader header;
@ -481,20 +484,21 @@ static int libjxl_receive_frame(AVCodecContext *avctx, AVFrame *frame)
/* full image is one frame, even if animated */
av_log(avctx, AV_LOG_DEBUG, "FULL_IMAGE event emitted\n");
if (ctx->iccp) {
AVFrameSideData *sd = av_frame_new_side_data_from_buf(frame, AV_FRAME_DATA_ICC_PROFILE, ctx->iccp);
AVFrameSideData *sd = av_frame_new_side_data_from_buf(ctx->frame, AV_FRAME_DATA_ICC_PROFILE, ctx->iccp);
if (!sd)
return AVERROR(ENOMEM);
/* ownership is transfered, and it is not ref-ed */
ctx->iccp = NULL;
}
if (avctx->pkt_timebase.num) {
frame->pts = av_rescale_q(ctx->pts, ctx->timebase, avctx->pkt_timebase);
frame->duration = av_rescale_q(ctx->frame_duration, ctx->timebase, avctx->pkt_timebase);
ctx->frame->pts = av_rescale_q(ctx->pts, ctx->timebase, avctx->pkt_timebase);
ctx->frame->duration = av_rescale_q(ctx->frame_duration, ctx->timebase, avctx->pkt_timebase);
} else {
frame->pts = ctx->pts;
frame->duration = ctx->frame_duration;
ctx->frame->pts = ctx->pts;
ctx->frame->duration = ctx->frame_duration;
}
ctx->pts += ctx->frame_duration;
av_frame_move_ref(frame, ctx->frame);
return 0;
case JXL_DEC_SUCCESS:
av_log(avctx, AV_LOG_DEBUG, "SUCCESS event emitted\n");
@ -525,6 +529,7 @@ static av_cold int libjxl_decode_close(AVCodecContext *avctx)
JxlDecoderDestroy(ctx->decoder);
ctx->decoder = NULL;
av_buffer_unref(&ctx->iccp);
av_frame_free(&ctx->frame);
return 0;
}