[FFmpeg-devel] [PATCH] libavformat: add side_data copy in concat demuxer

Gerard Sole g.sole.ca at gmail.com
Wed Dec 15 21:00:31 EET 2021


Adds support for concat demuxer to copy the side data information
from the input file to the resulting file. It will behave like the
metadata copy, where the metadata of the first file is kept in the
the output file.

Extract the current code that already performs the stream side_data
copy into a separate method and reuse the method in the concat demuxer.

Signed-off-by: Gerard Sole <g.sole.ca at gmail.com>
---
 libavformat/concatdec.c                             | 1 +
 libavformat/internal.h                              | 9 +++++++++
 libavformat/utils.c                                 | 9 +++++++++
 tests/ref/fate/concat-demuxer-extended-lavf-mxf     | 2 +-
 tests/ref/fate/concat-demuxer-extended-lavf-mxf_d10 | 2 +-
 tests/ref/fate/concat-demuxer-simple1-lavf-mxf      | 1 +
 tests/ref/fate/concat-demuxer-simple1-lavf-mxf_d10  | 1 +
 tests/ref/fate/concat-demuxer-simple2-lavf-ts       | 1 +
 8 files changed, 24 insertions(+), 2 deletions(-)

diff --git a/libavformat/concatdec.c b/libavformat/concatdec.c
index 8d80e536d1..0603c6e254 100644
--- a/libavformat/concatdec.c
+++ b/libavformat/concatdec.c
@@ -191,6 +191,7 @@ static int copy_stream_props(AVStream *st, AVStream *source_st)
     avpriv_set_pts_info(st, 64, source_st->time_base.num, source_st->time_base.den);
 
     av_dict_copy(&st->metadata, source_st->metadata, 0);
+    ff_stream_side_data_copy(st, source_st);
     return 0;
 }
 
diff --git a/libavformat/internal.h b/libavformat/internal.h
index eb8239cd3f..0e08dc832e 100644
--- a/libavformat/internal.h
+++ b/libavformat/internal.h
@@ -840,6 +840,15 @@ int ff_stream_add_bitstream_filter(AVStream *st, const char *name, const char *a
  */
 int ff_stream_encode_params_copy(AVStream *dst, const AVStream *src);
 
+/**
+ * Copy side data from source to destination stream
+ *
+ * @param dst pointer to destination AVStream
+ * @param src pointer to source AVStream
+ * @return >=0 on success, AVERROR code on error
+ */
+int ff_stream_side_data_copy(AVStream *dst, const AVStream *src);
+
 /**
  * Wrap ffurl_move() and log if error happens.
  *
diff --git a/libavformat/utils.c b/libavformat/utils.c
index b5a4a09ae8..332ba534d2 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -605,6 +605,15 @@ int ff_stream_encode_params_copy(AVStream *dst, const AVStream *src)
     if (ret < 0)
         return ret;
 
+    ret = ff_stream_side_data_copy(dst, src);
+    if (ret < 0)
+        return ret;
+
+    return 0;
+}
+
+int ff_stream_side_data_copy(AVStream *dst, const AVStream *src)
+{
     /* Free existing side data*/
     for (int i = 0; i < dst->nb_side_data; i++)
         av_free(dst->side_data[i].data);
diff --git a/tests/ref/fate/concat-demuxer-extended-lavf-mxf b/tests/ref/fate/concat-demuxer-extended-lavf-mxf
index 4b2a8624db..543c7d6a8c 100644
--- a/tests/ref/fate/concat-demuxer-extended-lavf-mxf
+++ b/tests/ref/fate/concat-demuxer-extended-lavf-mxf
@@ -1 +1 @@
-29e4e502a912b6d863e75d44e156ed31 *tests/data/fate/concat-demuxer-extended-lavf-mxf.ffprobe
+d367d7f6df7292cbf454c6d07fca9b04 *tests/data/fate/concat-demuxer-extended-lavf-mxf.ffprobe
diff --git a/tests/ref/fate/concat-demuxer-extended-lavf-mxf_d10 b/tests/ref/fate/concat-demuxer-extended-lavf-mxf_d10
index 1dedc6bf43..57b22848b9 100644
--- a/tests/ref/fate/concat-demuxer-extended-lavf-mxf_d10
+++ b/tests/ref/fate/concat-demuxer-extended-lavf-mxf_d10
@@ -1 +1 @@
-8de04a786521677a593283c44a53572e *tests/data/fate/concat-demuxer-extended-lavf-mxf_d10.ffprobe
+1fac6962d4c5f1070d0d2db5ab7d86aa *tests/data/fate/concat-demuxer-extended-lavf-mxf_d10.ffprobe
diff --git a/tests/ref/fate/concat-demuxer-simple1-lavf-mxf b/tests/ref/fate/concat-demuxer-simple1-lavf-mxf
index 2fe703e2a6..589dbb73b6 100644
--- a/tests/ref/fate/concat-demuxer-simple1-lavf-mxf
+++ b/tests/ref/fate/concat-demuxer-simple1-lavf-mxf
@@ -121,4 +121,5 @@ Strings Metadata
 video|0|37|1.480000|34|1.360000|1|0.040000|24786|212480|K_|1
 Strings Metadata
 0|mpeg2video|4|video|[0][0][0][0]|0x0000|352|288|0|0|0|0|1|1:1|11:9|yuv420p|8|tv|unknown|unknown|unknown|left|progressive|1|N/A|25/1|25/1|1/25|N/A|N/A|N/A|N/A|N/A|N/A|N/A|N/A|N/A|51|22|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0x060A2B340101010501010D001300000000000000000000000000000000000001
+CPB properties|0|0|0|49152|-1
 1|pcm_s16le|unknown|audio|[0][0][0][0]|0x0000|s16|48000|1|unknown|16|N/A|0/0|0/0|1/48000|0|0.000000|N/A|N/A|768000|N/A|N/A|N/A|N/A|50|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0x060A2B340101010501010D001300000000000000000000000000000000000001
diff --git a/tests/ref/fate/concat-demuxer-simple1-lavf-mxf_d10 b/tests/ref/fate/concat-demuxer-simple1-lavf-mxf_d10
index 0a3af658f6..7fb6ba2c9c 100644
--- a/tests/ref/fate/concat-demuxer-simple1-lavf-mxf_d10
+++ b/tests/ref/fate/concat-demuxer-simple1-lavf-mxf_d10
@@ -79,4 +79,5 @@ Strings Metadata
 audio|1|65280|1.360000|65280|1.360000|1920|0.040000|7680|2074624|K_|1
 Strings Metadata
 0|mpeg2video|0|video|[0][0][0][0]|0x0000|720|608|0|0|0|0|0|1:1|45:38|yuv422p|5|tv|unknown|unknown|unknown|topleft|tb|1|N/A|25/1|25/1|1/25|0|0.000000|N/A|N/A|30000000|N/A|N/A|N/A|N/A|35|22|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0x060A2B340101010501010D001300000000000000000000000000000000000001
+CPB properties|30000000|0|0|1212416|-1
 1|pcm_s16le|unknown|audio|[0][0][0][0]|0x0000|s16|48000|2|unknown|16|N/A|0/0|0/0|1/48000|0|0.000000|N/A|N/A|1536000|N/A|N/A|N/A|N/A|35|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0x060A2B340101010501010D001300000000000000000000000000000000000001
diff --git a/tests/ref/fate/concat-demuxer-simple2-lavf-ts b/tests/ref/fate/concat-demuxer-simple2-lavf-ts
index 76dde3b873..7c6079e2b1 100644
--- a/tests/ref/fate/concat-demuxer-simple2-lavf-ts
+++ b/tests/ref/fate/concat-demuxer-simple2-lavf-ts
@@ -213,3 +213,4 @@ video|1|175582|1.950911|171982|1.910911|3600|0.040000|15019|224848|__MPEGTS Stre
 
 0|mp2|unknown|audio|[3][0][0][0]|0x0003|s16p|44100|1|mono|0|N/A|0/0|0/0|1/90000|0|0.000000|N/A|N/A|64000|N/A|N/A|N/A|N/A|89|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|this is stream 0
 1|mpeg2video|4|video|[2][0][0][0]|0x0002|352|288|0|0|0|0|1|1:1|11:9|yuv420p|8|tv|unknown|unknown|unknown|left|progressive|1|N/A|25/1|25/1|1/90000|N/A|N/A|N/A|N/A|N/A|N/A|N/A|N/A|N/A|60|22|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|this is stream 1
+CPB properties|0|0|0|49152|-1
-- 
2.32.0



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