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added more audio codec params to codec module

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This commit is contained in:
Roman Arutyunyan 2012-06-19 17:05:05 +04:00
parent 2c1fbcfb8f
commit 1e0e98a439
2 changed files with 8 additions and 0 deletions
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5
ngx_rtmp_codec_module.c
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@ -145,6 +145,8 @@ ngx_rtmp_codec_av(ngx_rtmp_session_t *s, ngx_rtmp_header_t *h,
uint8_t fmt;
ngx_rtmp_header_t ch, lh;
ngx_uint_t *version;
static ngx_uint_t sample_rates[] =
{ 5512, 11025, 22050, 44100 };
if (h->type != NGX_RTMP_MSG_AUDIO && h->type != NGX_RTMP_MSG_VIDEO) {
@ -165,6 +167,9 @@ ngx_rtmp_codec_av(ngx_rtmp_session_t *s, ngx_rtmp_header_t *h,
fmt = in->buf->pos[0];
if (h->type == NGX_RTMP_MSG_AUDIO) {
ctx->audio_codec_id = (fmt & 0xf0) >> 4;
ctx->audio_channels = (fmt & 0x01) + 1;
ctx->sample_size = (fmt & 0x02) ? 2 : 1;
ctx->sample_rate = sample_rates[(fmt & 0x0c) >> 2];
} else {
ctx->video_codec_id = (fmt & 0x0f);
}

3
ngx_rtmp_codec_module.h
View file

@ -55,6 +55,9 @@ typedef struct {
ngx_uint_t video_codec_id;
ngx_uint_t audio_data_rate;
ngx_uint_t audio_codec_id;
ngx_uint_t sample_rate; /* 5512, 11025, 22050, 44100 */
ngx_uint_t sample_size; /* 1=8bit, 2=16bit */
ngx_uint_t audio_channels; /* 1, 2 */
u_char profile[32];
u_char level[32];