diff options
| author | Tomas Härdin <tomas.hardin@codemill.se> | 2011-11-11 15:01:34 +0100 |
|---|---|---|
| committer | Janne Grunau <janne-libav@jannau.net> | 2012-01-22 14:40:52 +0100 |
| commit | edb50856473d44a61e286af3a11087027722f5d8 (patch) | |
| tree | c1804ebf62549661cf06cd255b94ad21f3aaecfa | |
| parent | 682b6db706a561de0241339f6674e59581ac1330 (diff) | |
mxfdec: Add hack that adjusts the n_delta calculation when system items are present.
Signed-off-by: Janne Grunau <janne-libav@jannau.net>
| -rw-r--r-- | libavformat/mxfdec.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/libavformat/mxfdec.c b/libavformat/mxfdec.c index 546706255f..2945ffa48b 100644 --- a/libavformat/mxfdec.c +++ b/libavformat/mxfdec.c @@ -181,6 +181,7 @@ typedef struct { uint8_t *local_tags; int local_tags_count; uint64_t footer_partition; + int system_item; int64_t essence_offset; int first_essence_kl_length; int64_t first_essence_length; @@ -205,6 +206,7 @@ typedef struct { /* partial keys to match */ static const uint8_t mxf_header_partition_pack_key[] = { 0x06,0x0e,0x2b,0x34,0x02,0x05,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x02 }; static const uint8_t mxf_essence_element_key[] = { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01 }; +static const uint8_t mxf_system_item_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x03,0x01,0x04 }; static const uint8_t mxf_klv_key[] = { 0x06,0x0e,0x2b,0x34 }; /* complete keys to match */ static const uint8_t mxf_crypto_source_container_ul[] = { 0x06,0x0e,0x2b,0x34,0x01,0x01,0x01,0x09,0x06,0x01,0x01,0x02,0x02,0x00,0x00,0x00 }; @@ -990,7 +992,7 @@ static int mxf_parse_index(MXFContext *mxf, int i, AVStream *st) accumulated_offset = 0; /* HACK: How to correctly link between streams and slices? */ - if (i < st->index) + if (i < mxf->system_item + st->index) n_delta++; if (n_delta >= tableseg->nb_delta_entries && st->index != 0) continue; @@ -1356,6 +1358,11 @@ static int mxf_read_header(AVFormatContext *s, AVFormatParameters *ap) avio_seek(s->pb, klv.offset, SEEK_SET); break; } + if (IS_KLV_KEY(klv.key, mxf_system_item_key)) { + mxf->system_item = 1; + avio_skip(s->pb, klv.length); + continue; + } for (metadata = mxf_metadata_read_table; metadata->read; metadata++) { if (IS_KLV_KEY(klv.key, metadata->key)) { |