Module: libav
Branch: master
Commit: edb50856473d44a61e286af3a11087027722f5d8
Author: Tomas Härdin <tomas.har...@codemill.se>
Committer: Janne Grunau <janne-li...@jannau.net>
Date: Fri Nov 11 15:01:34 2011 +0100
mxfdec: Add hack that adjusts the n_delta calculation when system items are
present.
Signed-off-by: Janne Grunau <janne-li...@jannau.net>
---
libavformat/mxfdec.c | 9 ++++++++-
1 files changed, 8 insertions(+), 1 deletions(-)
diff --git a/libavformat/mxfdec.c b/libavformat/mxfdec.c
index 5467062..2945ffa 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)) {
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