[FFmpeg-devel] [PATCH 02/12] avcodec/codec_par: add side data to AVCodecParameters
James Almer
jamrial at gmail.com
Mon Aug 28 15:34:54 EEST 2023
Signed-off-by: James Almer <jamrial at gmail.com>
---
libavcodec/codec_par.c | 43 ++++++++++++++++++++++++++++++++++++++++++
libavcodec/codec_par.h | 6 ++++++
2 files changed, 49 insertions(+)
diff --git a/libavcodec/codec_par.c b/libavcodec/codec_par.c
index a38a475dc7..a932323759 100644
--- a/libavcodec/codec_par.c
+++ b/libavcodec/codec_par.c
@@ -27,11 +27,13 @@
#include "libavutil/mem.h"
#include "avcodec.h"
#include "codec_par.h"
+#include "packet.h"
static void codec_parameters_reset(AVCodecParameters *par)
{
av_freep(&par->extradata);
av_channel_layout_uninit(&par->ch_layout);
+ av_packet_side_data_set_free(&par->side_data);
memset(par, 0, sizeof(*par));
@@ -72,6 +74,37 @@ void avcodec_parameters_free(AVCodecParameters **ppar)
av_freep(ppar);
}
+static int codec_parameters_copy_side_data(AVPacketSideDataSet *dst,
+ const AVPacketSideDataSet *src)
+{
+ if (!src->nb_sd)
+ return 0;
+
+ dst->nb_sd = 0;
+ dst->sd = av_calloc(src->nb_sd, sizeof(*dst->sd));
+ if (!dst->sd)
+ return AVERROR(ENOMEM);
+
+ for (int i = 0; i < src->nb_sd; i++) {
+ AVPacketSideData *sd = av_mallocz(sizeof(*sd));
+
+ if (!sd)
+ return AVERROR(ENOMEM);
+
+ sd->data = av_memdup(src->sd[i]->data, src->sd[i]->size);
+ if (!sd->data) {
+ return AVERROR(ENOMEM);
+ av_free(sd);
+ }
+
+ sd->type = src->sd[i]->type;
+ sd->size = src->sd[i]->size;
+ dst->sd[dst->nb_sd++] = sd;
+ }
+
+ return 0;
+}
+
int avcodec_parameters_copy(AVCodecParameters *dst, const AVCodecParameters *src)
{
int ret;
@@ -89,6 +122,9 @@ int avcodec_parameters_copy(AVCodecParameters *dst, const AVCodecParameters *src
memcpy(dst->extradata, src->extradata, src->extradata_size);
dst->extradata_size = src->extradata_size;
}
+ ret = codec_parameters_copy_side_data(&dst->side_data, &src->side_data);
+ if (ret < 0)
+ return ret;
ret = av_channel_layout_copy(&dst->ch_layout, &src->ch_layout);
if (ret < 0)
@@ -177,6 +213,9 @@ FF_ENABLE_DEPRECATION_WARNINGS
memcpy(par->extradata, codec->extradata, codec->extradata_size);
par->extradata_size = codec->extradata_size;
}
+ ret = codec_parameters_copy_side_data(&par->side_data, &codec->packet_side_data);
+ if (ret < 0)
+ return ret;
return 0;
}
@@ -261,6 +300,10 @@ FF_ENABLE_DEPRECATION_WARNINGS
memcpy(codec->extradata, par->extradata, par->extradata_size);
codec->extradata_size = par->extradata_size;
}
+ av_packet_side_data_set_free(&codec->packet_side_data);
+ ret = codec_parameters_copy_side_data(&codec->packet_side_data, &par->side_data);
+ if (ret < 0)
+ return ret;
return 0;
}
diff --git a/libavcodec/codec_par.h b/libavcodec/codec_par.h
index add90fdb1e..169e595b7c 100644
--- a/libavcodec/codec_par.h
+++ b/libavcodec/codec_par.h
@@ -29,6 +29,7 @@
#include "libavutil/pixfmt.h"
#include "codec_id.h"
+#include "packet.h"
/**
* @addtogroup lavc_core
@@ -223,6 +224,11 @@ typedef struct AVCodecParameters {
* when no higher-level timing information is available.
*/
AVRational framerate;
+
+ /**
+ * Additional data associated with the entire stream.
+ */
+ AVPacketSideDataSet side_data;
} AVCodecParameters;
/**
--
2.41.0
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