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avformat/mpegtsenc: use local variable store st->codecpar->codec_id

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Reviewed-by: Marton Balint <cus@passwd.hu>
Signed-off-by: Limin Wang <lance.lmwang@gmail.com>
This commit is contained in:
Limin Wang 2020-07-08 11:19:13 +08:00
parent a35facfeb3
commit bae2ae62ba
1 changed files with 9 additions and 8 deletions
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17
libavformat/mpegtsenc.c
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@ -453,6 +453,7 @@ static int mpegts_write_pmt(AVFormatContext *s, MpegTSService *service)
AVStream *st = s->streams[i];
MpegTSWriteStream *ts_st = st->priv_data;
AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL, 0);
enum AVCodecID codec_id = st->codecpar->codec_id;
if (s->nb_programs) {
int k, found = 0;
@ -484,19 +485,19 @@ static int mpegts_write_pmt(AVFormatContext *s, MpegTSService *service)
switch (st->codecpar->codec_type) {
case AVMEDIA_TYPE_AUDIO:
if (ts->flags & MPEGTS_FLAG_SYSTEM_B) {
if (st->codecpar->codec_id==AV_CODEC_ID_AC3) {
if (codec_id == AV_CODEC_ID_AC3) {
*q++=0x6a; // AC3 descriptor see A038 DVB SI
*q++=1; // 1 byte, all flags sets to 0
*q++=0; // omit all fields...
} else if (st->codecpar->codec_id==AV_CODEC_ID_EAC3) {
} else if (codec_id == AV_CODEC_ID_EAC3) {
*q++=0x7a; // EAC3 descriptor see A038 DVB SI
*q++=1; // 1 byte, all flags sets to 0
*q++=0; // omit all fields...
}
}
if (st->codecpar->codec_id==AV_CODEC_ID_S302M)
if (codec_id == AV_CODEC_ID_S302M)
put_registration_descriptor(&q, MKTAG('B', 'S', 'S', 'D'));
if (st->codecpar->codec_id==AV_CODEC_ID_OPUS) {
if (codec_id == AV_CODEC_ID_OPUS) {
/* 6 bytes registration descriptor, 4 bytes Opus audio descriptor */
if (q - data > SECTION_LENGTH - 6 - 4) {
err = 1;
@ -611,7 +612,7 @@ static int mpegts_write_pmt(AVFormatContext *s, MpegTSService *service)
const char default_language[] = "und";
const char *language = lang && strlen(lang->value) >= 3 ? lang->value : default_language;
if (st->codecpar->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
if (codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
uint8_t *len_ptr;
int extradata_copied = 0;
@ -653,7 +654,7 @@ static int mpegts_write_pmt(AVFormatContext *s, MpegTSService *service)
}
*len_ptr = q - len_ptr - 1;
} else if (st->codecpar->codec_id == AV_CODEC_ID_DVB_TELETEXT) {
} else if (codec_id == AV_CODEC_ID_DVB_TELETEXT) {
uint8_t *len_ptr = NULL;
int extradata_copied = 0;
@ -697,9 +698,9 @@ static int mpegts_write_pmt(AVFormatContext *s, MpegTSService *service)
}
break;
case AVMEDIA_TYPE_DATA:
if (st->codecpar->codec_id == AV_CODEC_ID_SMPTE_KLV) {
if (codec_id == AV_CODEC_ID_SMPTE_KLV) {
put_registration_descriptor(&q, MKTAG('K', 'L', 'V', 'A'));
} else if (st->codecpar->codec_id == AV_CODEC_ID_TIMED_ID3) {
} else if (codec_id == AV_CODEC_ID_TIMED_ID3) {
const char *tag = "ID3 ";
*q++ = 0x26; /* metadata descriptor */
*q++ = 13;