[FFmpeg-cvslog] avformat/apngenc: use the stream parameters extradata if available
James Almer
git at videolan.org
Fri Nov 18 17:58:59 EET 2016
ffmpeg | branch: release/3.2 | James Almer <jamrial at gmail.com> | Fri Nov 18 12:21:54 2016 -0300| [f97bee9ad565cba3b8e348167105b73211787066] | committer: James Almer
avformat/apngenc: use the stream parameters extradata if available
Fixes remuxing apng streams coming from the apng demuxer, which sends extradata
during init.
Signed-off-by: James Almer <jamrial at gmail.com>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=f97bee9ad565cba3b8e348167105b73211787066
---
libavformat/apngenc.c | 9 +++++++++
tests/lavf-regression.sh | 6 +++---
tests/ref/lavf/apng | 3 +++
3 files changed, 15 insertions(+), 3 deletions(-)
diff --git a/libavformat/apngenc.c b/libavformat/apngenc.c
index e5e8aa9..0c40be2 100644
--- a/libavformat/apngenc.c
+++ b/libavformat/apngenc.c
@@ -81,6 +81,7 @@ static void apng_write_chunk(AVIOContext *io_context, uint32_t tag,
static int apng_write_header(AVFormatContext *format_context)
{
APNGMuxContext *apng = format_context->priv_data;
+ AVCodecParameters *par = format_context->streams[0]->codecpar;
if (format_context->nb_streams != 1 ||
format_context->streams[0]->codecpar->codec_type != AVMEDIA_TYPE_VIDEO ||
@@ -101,6 +102,14 @@ static int apng_write_header(AVFormatContext *format_context)
avio_wb64(format_context->pb, PNGSIG);
// Remaining headers are written when they are copied from the encoder
+ if (par->extradata_size) {
+ apng->extra_data = av_mallocz(par->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
+ if (!apng->extra_data)
+ return AVERROR(ENOMEM);
+ apng->extra_data_size = par->extradata_size;
+ memcpy(apng->extra_data, par->extradata, par->extradata_size);
+ }
+
return 0;
}
diff --git a/tests/lavf-regression.sh b/tests/lavf-regression.sh
index e47be18..12954d5 100755
--- a/tests/lavf-regression.sh
+++ b/tests/lavf-regression.sh
@@ -216,9 +216,9 @@ if [ -n "$do_apng" ] ; then
file=${outfile}lavf.apng
do_avconv $file $DEC_OPTS -f image2 -vcodec pgmyuv -i $raw_src $ENC_OPTS -t 1 -pix_fmt rgb24
do_avconv_crc $file $DEC_OPTS -i $target_path/$file -pix_fmt rgb24
-#file_copy=${outfile}lavf.copy.apng
-#do_avconv $file_copy $DEC_OPTS -i $file $ENC_OPTS -c copy
-#do_avconv_crc $file_copy $DEC_OPTS -i $target_path/$file_copy
+file_copy=${outfile}lavf.copy.apng
+do_avconv $file_copy $DEC_OPTS -i $file $ENC_OPTS -c copy
+do_avconv_crc $file_copy $DEC_OPTS -i $target_path/$file_copy
file=${outfile}lavf.png
do_avconv $file $DEC_OPTS -f image2 -vcodec pgmyuv -i $raw_src $ENC_OPTS -pix_fmt rgb24 -frames:v 1 -f apng
do_avconv_crc $file $DEC_OPTS -i $target_path/$file -pix_fmt rgb24
diff --git a/tests/ref/lavf/apng b/tests/ref/lavf/apng
index 4d35408..8e9e5e6 100644
--- a/tests/ref/lavf/apng
+++ b/tests/ref/lavf/apng
@@ -1,6 +1,9 @@
a4c46fad7716ad094eb3c78b74ca0244 *./tests/data/lavf/lavf.apng
6209864 ./tests/data/lavf/lavf.apng
./tests/data/lavf/lavf.apng CRC=0x87b3c15f
+a4c46fad7716ad094eb3c78b74ca0244 *./tests/data/lavf/lavf.copy.apng
+6209864 ./tests/data/lavf/lavf.copy.apng
+./tests/data/lavf/lavf.copy.apng CRC=0x87b3c15f
c5900fdd1b2fc30b985793f5226fd0c4 *./tests/data/lavf/lavf.png
248854 ./tests/data/lavf/lavf.png
./tests/data/lavf/lavf.png CRC=0xd8c7b7a1
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