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authorJeremy Hinegardner <jeremy@copiousfreetime.org>2013-03-23 23:15:31 -0600
committerMichael Niedermayer <michaelni@gmx.at>2013-05-17 10:04:45 +0200
commit28e6b7b9b4e0a6ec05575cffedd56e1319f8691f (patch)
treefe854ef7896c80d9eca715d45229b0a9a2372395
parent17989dcf540c13a7122663f64c09dc830ffc3a41 (diff)
Turn off usage of base_data_offset in tfhd for PIFF files
According to the PIFF specification[1] the base_data_offset field MUST be omitteed. See section 5.2.17. Since the ISMV files created by ffmpeg state that they are 'piff' compatible via 'ftyp' box, this needs to be corrected. [1] http://www.iis.net/learn/media/smooth-streaming/protected-interoperable-file-format Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
-rw-r--r--libavformat/movenc.c6
-rw-r--r--tests/ref/lavf/ismv12
2 files changed, 10 insertions, 8 deletions
diff --git a/libavformat/movenc.c b/libavformat/movenc.c
index 8b3ad7f387..594f22bd7d 100644
--- a/libavformat/movenc.c
+++ b/libavformat/movenc.c
@@ -2505,9 +2505,11 @@ static int mov_write_tfhd_tag(AVIOContext *pb, MOVTrack *track,
/* Don't set a default sample size, the silverlight player refuses
* to play files with that set. Don't set a default sample duration,
- * WMP freaks out if it is set. */
+ * WMP freaks out if it is set. Don't set a base data offset, PIFF
+ * file format says it MUST NOT be set. */
if (track->mode == MODE_ISM)
- flags &= ~(MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION);
+ flags &= ~(MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
+ MOV_TFHD_BASE_DATA_OFFSET);
avio_wb32(pb, 0); /* size placeholder */
ffio_wfourcc(pb, "tfhd");
diff --git a/tests/ref/lavf/ismv b/tests/ref/lavf/ismv
index 6f9f57be22..05bb575ccd 100644
--- a/tests/ref/lavf/ismv
+++ b/tests/ref/lavf/ismv
@@ -1,9 +1,9 @@
-a24a0426b5f8dc896daaf18502e38790 *./tests/data/lavf/lavf.ismv
-312263 ./tests/data/lavf/lavf.ismv
+3a2563358cc91017fc96f9e690f26b85 *./tests/data/lavf/lavf.ismv
+312255 ./tests/data/lavf/lavf.ismv
./tests/data/lavf/lavf.ismv CRC=0x9d9a638a
-1b98502911dd19a9792777de67922db2 *./tests/data/lavf/lavf.ismv
-321189 ./tests/data/lavf/lavf.ismv
+77dec1248e2c4d3b2b44dfe6bd27149a *./tests/data/lavf/lavf.ismv
+321181 ./tests/data/lavf/lavf.ismv
./tests/data/lavf/lavf.ismv CRC=0xe8130120
-a24a0426b5f8dc896daaf18502e38790 *./tests/data/lavf/lavf.ismv
-312263 ./tests/data/lavf/lavf.ismv
+3a2563358cc91017fc96f9e690f26b85 *./tests/data/lavf/lavf.ismv
+312255 ./tests/data/lavf/lavf.ismv
./tests/data/lavf/lavf.ismv CRC=0x9d9a638a