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avformat/matroska: use named constants for ITU-T T.35 metadata 

Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer 2024-03-11 12:06:56 -03:00
parent 61519cc654
commit 53dd31497b
2 changed files with 6 additions and 3 deletions
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4
libavformat/matroskadec.c
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@ -54,6 +54,7 @@
#include "libavcodec/bytestream.h"
#include "libavcodec/defs.h"
#include "libavcodec/flac.h"
#include "libavcodec/itut35.h"
#include "libavcodec/mpeg4audio.h"
#include "libavcodec/packet_internal.h"
@ -3884,7 +3885,8 @@ static int matroska_parse_block_additional(MatroskaDemuxContext *matroska,
country_code = bytestream2_get_byteu(&bc);
provider_code = bytestream2_get_be16u(&bc);
if (country_code != 0xB5 || provider_code != 0x3C)
if (country_code != ITU_T_T35_COUNTRY_CODE_US ||
provider_code != ITU_T_T35_PROVIDER_CODE_SMTPE)
break; // ignore
provider_oriented_code = bytestream2_get_be16u(&bc);

5
libavformat/matroskaenc.c
View File

@ -63,6 +63,7 @@
#include "libavcodec/codec_desc.h"
#include "libavcodec/codec_par.h"
#include "libavcodec/defs.h"
#include "libavcodec/itut35.h"
#include "libavcodec/xiph.h"
#include "libavcodec/mpeg4audio.h"
@ -2824,8 +2825,8 @@ static int mkv_write_block(void *logctx, MatroskaMuxContext *mkv,
uint8_t *payload = t35_buf;
size_t payload_size = sizeof(t35_buf) - 6;
bytestream_put_byte(&payload, 0xB5); // country_code
bytestream_put_be16(&payload, 0x3C); // provider_code
bytestream_put_byte(&payload, ITU_T_T35_COUNTRY_CODE_US);
bytestream_put_be16(&payload, ITU_T_T35_PROVIDER_CODE_SMTPE);
bytestream_put_be16(&payload, 0x01); // provider_oriented_code
bytestream_put_byte(&payload, 0x04); // application_identifier