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FFmpeg/tests/ref/fate/matroska-dovi-write-config7
Andreas Rheinhardt d53acf452f avformat/matroskaenc: Don't write \0 unnecessarily
Writing the duration SimpleTag is special: It's size is
reserved in advance via an EBML Void element (if seekable)
and this reserved space is overwritten when writing the trailer;
it does not use put_ebml_string().

The string to write is created via snprintf on a buffer
of size 20; this buffer is then written via put_ebml_binary()
with a size of 20.

EBML strings need not be zero-terminated; if not, they
are implicitly terminated by the element's length field.
snprintf() always zero-terminates the buffer, i.e.
the last byte can be discarded when using an EBML string.
This patch does this.

The FATE changes are as expected: One byte saved for every
track; the only exception is the matroska-qt-mode test:
An additional byte is saved because an additional byte
could be saved from the enclosing Tags length field.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2023-08-10 23:56:35 +02:00

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7adef53df9e14358e0b99f8a829e2d97 *tests/data/fate/matroska-dovi-write-config7.matroska
72700 tests/data/fate/matroska-dovi-write-config7.matroska
#extradata 0: 116, 0x2b8d1669
#extradata 1: 116, 0x2b8d1669
#tb 0: 1/1000
#media_type 0: video
#codec_id 0: hevc
#dimensions 0: 1920x1080
#sar 0: 0/1
#tb 1: 1/1000
#media_type 1: video
#codec_id 1: hevc
#dimensions 1: 1920x1080
#sar 1: 0/1
0, -83, 0, 41, 699, 0x728548f1
1, -83, 0, 41, 1085, 0xfb2dba82, S=1, 8
0, -42, 167, 41, 95, 0xc0312044, F=0x0
1, -42, 167, 41, 481, 0xf23f91d5, F=0x0
0, 0, 83, 41, 99, 0x5e0a2221, F=0x0
1, 0, 83, 41, 485, 0x5f7b93b2, F=0x0
0, 42, 42, 41, 99, 0xe60e208b, F=0x0
1, 42, 42, 41, 485, 0x8335921c, F=0x0
0, 83, 125, 41, 99, 0xa1e422e1, F=0x0
1, 83, 125, 41, 485, 0xc4e49472, F=0x0
0, 125, 333, 41, 96, 0xdc762089, F=0x0
1, 125, 333, 41, 482, 0x769c921a, F=0x0
0, 167, 250, 41, 100, 0x89cd22a0, F=0x0
1, 167, 250, 41, 486, 0x4aca9431, F=0x0
0, 208, 208, 41, 100, 0x6d4521ff, F=0x0
1, 208, 208, 41, 486, 0x3b719390, F=0x0
0, 250, 292, 41, 99, 0x92ab22c0, F=0x0
1, 250, 292, 41, 485, 0x83e99451, F=0x0
0, 292, 292, 41, 95, 0xcd9020bd, F=0x0
1, 292, 292, 41, 481, 0x44ec924e, F=0x0
[STREAM]
[/STREAM]
[STREAM]
[SIDE_DATA]
side_data_type=DOVI configuration record
dv_version_major=1
dv_version_minor=0
dv_profile=7
dv_level=4
rpu_present_flag=1
el_present_flag=1
bl_present_flag=0
dv_bl_signal_compatibility_id=6
[/SIDE_DATA]
[/STREAM]