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Only insert the icpf atom in ProRes mkv packets if it isn't already present.

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The patch allows to read broken mkv files containing ProRes as written by
the Haali muxer.
Fixes a part of ticket #3434.
This commit is contained in:
Carl Eugen Hoyos
2014-04-17 14:46:11 +02:00
parent 197fe392db
commit 6c18200c2f
1 changed files with 3 additions and 2 deletions
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5
libavformat/matroskadec.c
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@@ -2545,7 +2545,8 @@ static int matroska_parse_frame(MatroskaDemuxContext *matroska,
pkt_data = wv_data;
}
if (st->codec->codec_id == AV_CODEC_ID_PRORES)
if (st->codec->codec_id == AV_CODEC_ID_PRORES &&
AV_RB32(&data[4]) != MKBETAG('i', 'c', 'p', 'f'))
offset = 8;
pkt = av_mallocz(sizeof(AVPacket));
@@ -2556,7 +2557,7 @@ static int matroska_parse_frame(MatroskaDemuxContext *matroska,
goto fail;
}
if (st->codec->codec_id == AV_CODEC_ID_PRORES) {
if (st->codec->codec_id == AV_CODEC_ID_PRORES && offset == 8) {
uint8_t *buf = pkt->data;
bytestream_put_be32(&buf, pkt_size);
bytestream_put_be32(&buf, MKBETAG('i', 'c', 'p', 'f'));