From 843809ac072bbaf9ae0d3d3946723f1fcfb07923 Mon Sep 17 00:00:00 2001
From: Lynne <dev@lynne.ee>
Date: Tue, 12 Sep 2023 08:00:02 +0200
Subject: [PATCH 2/3] decode: allow decoders to override skip_samples
---
libavcodec/decode.c | 5 ++++-
libavcodec/internal.h | 5 +++++
2 files changed, 9 insertions(+), 1 deletion(-)
@@ -312,7 +312,10 @@ static int discard_samples(AVCodecContext *avctx, AVFrame *frame, int64_t *disca
side = av_frame_get_side_data(frame, AV_FRAME_DATA_SKIP_SAMPLES);
if (side && side->size >= 10) {
- avci->skip_samples = AV_RL32(side->data);
+ if (avci->skip_samples_add)
+ avci->skip_samples += AV_RL32(side->data);
+ else
+ avci->skip_samples = AV_RL32(side->data);
avci->skip_samples = FFMAX(0, avci->skip_samples);
discard_padding = AV_RL32(side->data + 4);
av_log(avctx, AV_LOG_DEBUG, "skip %d / discard %d samples due to side data\n",
@@ -118,6 +118,11 @@ typedef struct AVCodecInternal {
*/
int skip_samples;
+ /**
+ * In case there's side data, add it to skip_samples, instead of overriding it.
+ */
+ int skip_samples_add;
+
/**
* hwaccel-specific private data
*/
--
2.40.1