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Git pushed a commit to branch master
in repository ffmpeg.
The following commit(s) were added to refs/heads/master by this push:
new 3bdd895832 avcodec/lcevcdec: use a counter as timestamp instead of
frame pts
3bdd895832 is described below
commit 3bdd895832244780c250713e49135615ac4de003
Author: James Almer <[email protected]>
AuthorDate: Mon Aug 17 00:14:19 2026 -0300
Commit: James Almer <[email protected]>
CommitDate: Wed Aug 19 09:25:40 2026 -0300
avcodec/lcevcdec: use a counter as timestamp instead of frame pts
If the source is an elementary stream, PTS may be unset and thus
liblcevc-dec will not be able to match nor order input raw pictures and
enhancement payloads.
Given lcevc_process() is called from the main thread in presentation order,
a simple counter will suffice.
Signed-off-by: James Almer <[email protected]>
---
libavcodec/lcevcdec.c | 35 +++++++++++++++++++++++------------
libavcodec/lcevcdec.h | 1 +
2 files changed, 24 insertions(+), 12 deletions(-)
diff --git a/libavcodec/lcevcdec.c b/libavcodec/lcevcdec.c
index 2e16a5a627..07f3ddabde 100644
--- a/libavcodec/lcevcdec.c
+++ b/libavcodec/lcevcdec.c
@@ -144,51 +144,62 @@ static int lcevc_send_frame(FFLCEVCFrame *frame_ctx,
const AVFrame *in)
AVFrame *opaque;
LCEVC_PictureHandle picture;
LCEVC_ReturnCode res;
- int ret = 0;
+ int ret;
if (!sd || fmt == LCEVC_ColorFormat_Unknown)
return 1;
- res = LCEVC_SendDecoderEnhancementData(lcevc->decoder, in->pts, sd->data,
sd->size);
- if (res != LCEVC_Success)
- return AVERROR_EXTERNAL;
+ res = LCEVC_SendDecoderEnhancementData(lcevc->decoder, lcevc->last_pts,
+ sd->data, sd->size);
+ if (res != LCEVC_Success) {
+ ret = AVERROR_EXTERNAL;
+ goto end;
+ }
ret = alloc_base_frame(lcevc, in, &picture);
if (ret < 0)
- return ret;
+ goto end;
opaque = av_frame_clone(in);
if (!opaque) {
LCEVC_FreePicture(lcevc->decoder, picture);
- return AVERROR(ENOMEM);
+ ret = AVERROR(ENOMEM);
+ goto end;
}
res = LCEVC_SetPictureUserData(lcevc->decoder, picture, opaque);
if (res != LCEVC_Success) {
LCEVC_FreePicture(lcevc->decoder, picture);
av_frame_free(&opaque);
- return AVERROR_EXTERNAL;
+ ret = AVERROR_EXTERNAL;
+ goto end;
}
- res = LCEVC_SendDecoderBase(lcevc->decoder, in->pts, picture, -1, opaque);
+ res = LCEVC_SendDecoderBase(lcevc->decoder, lcevc->last_pts, picture, -1,
opaque);
if (res != LCEVC_Success) {
LCEVC_FreePicture(lcevc->decoder, picture);
av_frame_free(&opaque);
- return AVERROR_EXTERNAL;
+ ret = AVERROR_EXTERNAL;
+ goto end;
}
memset(&picture, 0, sizeof(picture));
ret = alloc_enhanced_frame(frame_ctx, &picture);
if (ret < 0)
- return ret;
+ goto end;
res = LCEVC_SendDecoderPicture(lcevc->decoder, picture);
if (res != LCEVC_Success) {
LCEVC_FreePicture(lcevc->decoder, picture);
- return AVERROR_EXTERNAL;
+ ret = AVERROR_EXTERNAL;
+ goto end;
}
- return 0;
+ ret = 0;
+end:
+ lcevc->last_pts++;
+
+ return ret;
}
static int generate_output(FFLCEVCFrame *frame_ctx, AVFrame *out)
diff --git a/libavcodec/lcevcdec.h b/libavcodec/lcevcdec.h
index 8571a5e6ac..b53547f112 100644
--- a/libavcodec/lcevcdec.h
+++ b/libavcodec/lcevcdec.h
@@ -40,6 +40,7 @@ typedef struct FFLCEVCContext {
struct CodedBitstreamContext *cbc;
struct CodedBitstreamFragment *frag;
struct AVRefStructPool *frame_pool; ///< pool of FFLCEVCFrame
+ int64_t last_pts;
int loglevel;
int initialized;
} FFLCEVCContext;
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