[FFmpeg-devel] [PATCH 2/8] avfilter/buffersrc: add a side_data field
James Almer
jamrial at gmail.com
Fri Jan 10 20:34:53 EET 2025
This will be used to propagate global side data through the filterchain.
Signed-off-by: James Almer <jamrial at gmail.com>
---
libavfilter/buffersrc.c | 29 +++++++++++++++++++++++++++++
libavfilter/buffersrc.h | 3 +++
2 files changed, 32 insertions(+)
diff --git a/libavfilter/buffersrc.c b/libavfilter/buffersrc.c
index 117ac0cfa2..469a77c848 100644
--- a/libavfilter/buffersrc.c
+++ b/libavfilter/buffersrc.c
@@ -61,6 +61,8 @@ typedef struct BufferSourceContext {
enum AVSampleFormat sample_fmt;
int channels;
AVChannelLayout ch_layout;
+ AVFrameSideData **side_data;
+ int nb_side_data;
int eof;
int64_t last_pts;
@@ -160,6 +162,18 @@ int av_buffersrc_parameters_set(AVFilterContext *ctx, AVBufferSrcParameters *par
return AVERROR_BUG;
}
+ for (int i = 0; i < param->nb_side_data; i++) {
+ int ret;
+
+ av_frame_side_data_free(&s->side_data, &s->nb_side_data);
+ ret = av_frame_side_data_clone(&s->side_data, &s->nb_side_data,
+ param->side_data[i], 0);
+ if (ret < 0) {
+ av_frame_side_data_free(&s->side_data, &s->nb_side_data);
+ return ret;
+ }
+ }
+
return 0;
}
@@ -523,6 +537,21 @@ static int config_props(AVFilterLink *link)
return AVERROR(EINVAL);
}
+ for (int i = 0; i < c->nb_side_data; i++) {
+ const AVSideDataDescriptor *desc = av_frame_side_data_desc(c->side_data[i]->type);
+ int ret;
+
+ if (!(desc->props & AV_SIDE_DATA_PROP_GLOBAL))
+ continue;
+
+ ret = av_frame_side_data_clone(&link->side_data, &link->nb_side_data,
+ c->side_data[i], 0);
+ if (ret < 0) {
+ av_frame_side_data_free(&link->side_data, &link->nb_side_data);
+ return ret;
+ }
+ }
+
link->time_base = c->time_base;
l->frame_rate = c->frame_rate;
return 0;
diff --git a/libavfilter/buffersrc.h b/libavfilter/buffersrc.h
index 6f3344f445..2db9b8fb59 100644
--- a/libavfilter/buffersrc.h
+++ b/libavfilter/buffersrc.h
@@ -120,6 +120,9 @@ typedef struct AVBufferSrcParameters {
*/
enum AVColorSpace color_space;
enum AVColorRange color_range;
+
+ AVFrameSideData **side_data;
+ int nb_side_data;
} AVBufferSrcParameters;
/**
--
2.47.1
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