From: liushuyu <liush...@aosc.io> This patch adds the MCA demuxer to FFmpeg.
MCA is a format used by Capcom in some of their games, the audio format is always ADPCM_THP_LE in these files. This MCA demuxer implementation currently supports MCA version 1-5 and can partially handle some of the version 5 files with minor damages to the file header. There are some sample files I have prepared that you can try: * (version 4) https://streams.videolan.org/ffmpeg/incoming/bgm18_1632b.mca * (version 5) https://streams.videolan.org/ffmpeg/incoming/bgm020_1632.mca N.B. Files using version 1 to 3 are harder to find, I don't seem to find any to test. As required by https://ffmpeg.org/developer.html#New-codecs-or-formats-checklist, the minor version of libavformat is updated to 52. Patch version 2 changes: * changed version field to uint16_t and remove redundant compares Patch version 3 changes: * dropped excessive comments about offsets * removed redundant headers * indentation fixes and paddings around '=' * aliased st->codecpar to par to shorten the code * made m->samples_per_block zero check earlier * m->coef_offset converted to a local variable * replaced avio_read() checks with ffio_read_size() * moved sample size check to read_header() * manual sample copying replaced with av_get_packet() Zixing Liu (1): avformat: add mca demuxer Changelog | 1 + doc/general.texi | 2 + libavformat/Makefile | 1 + libavformat/allformats.c | 1 + libavformat/mca.c | 231 +++++++++++++++++++++++++++++++++++++++ libavformat/version.h | 4 +- 6 files changed, 238 insertions(+), 2 deletions(-) create mode 100644 libavformat/mca.c -- 2.28.0 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
