I've made an educated guess on how to continue: simply skip the package,
and it seems to work smoothly:
diff -rc ./bs1770gain-0.4.3/libffsox-2/ffsox_frame_reader.c
./bs1770gain-0.4.4-beta2/libffsox-2/ffsox_frame_reader.c
*** ./bs1770gain-0.4.3/libffsox-2/ffsox_frame_reader.c 2015-06-14
18:11:19.000000000 +0200
--- ./bs1770gain-0.4.4-beta2/libffsox-2/ffsox_frame_reader.c 2015-06-22
00:22:18.000000000 +0200
***************
*** 145,152 ****
}
if ((size=avcodec_decode_audio4(cc,frame,&got_frame,pkt))<0) {
! DMESSAGE("decoding audio");
! return -1;
}
pkt->size-=size;
--- 145,153 ----
}
if ((size=avcodec_decode_audio4(cc,frame,&got_frame,pkt))<0) {
! // skip the package.
! pkt->size=0;
! return 0;
}
pkt->size-=size;
On 21.06.2015 23:56, Peter Belkner wrote:
Hi Carl Eugen,
thanks for sharing. The issue under the hood is seems to be that
avcodec_decode_audio4() returns with error "[mp2 @ 0x9e527c0] Header
missing". How to continue in such a case?
Thanks and regards,
Peter
On 21.06.2015 23:09, Carl Eugen Hoyos wrote:
On Sunday 21 June 2015 10:28:55 pm Peter Belkner wrote:
What BS1770GAIN does is best approximated by the following FFmpeg
command (copying the video stream, transcoding the audio stream into
FLAC and muxing both into a MKV container):
$ ffmpeg -i sample/20030213-cvs.mpeg -vcodec copy -acodec flac -y
ffmpeg/20030213-cvs.mkv
$ ffmpeg -fflags +genpts -i 20030213-cvs.mpeg -vcodec copy
-acodec flac out.mkv
Carl Eugen
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