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added support for multiple aac/avc codecs per stream

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This commit is contained in:
Roman Arutyunyan
2012-06-13 17:35:48 +04:00
parent c377e3b5c6
commit 266e206afc
4 changed files with 54 additions and 23 deletions
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13
ngx_rtmp_codec_module.c
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@ -11,6 +11,11 @@
static ngx_int_t ngx_rtmp_codec_postconfiguration(ngx_conf_t *cf);
/* Global header version is used to identify
* incoming AAC/AVC header */
static ngx_uint_t header_version;
static ngx_rtmp_module_t ngx_rtmp_codec_module_ctx = {
NULL, /* preconfiguration */
ngx_rtmp_codec_postconfiguration, /* postconfiguration */
@ -139,6 +144,7 @@ ngx_rtmp_codec_av(ngx_rtmp_session_t *s, ngx_rtmp_header_t *h,
ngx_chain_t **header, **pheader;
uint8_t fmt;
ngx_rtmp_header_t ch, lh;
ngx_uint_t *version;
/* save AVC/AAC header */
if ((h->type != NGX_RTMP_MSG_AUDIO
@ -166,6 +172,7 @@ ngx_rtmp_codec_av(ngx_rtmp_session_t *s, ngx_rtmp_header_t *h,
if (((fmt & 0xf0) >> 4) == NGX_RTMP_AUDIO_AAC) {
header = &ctx->aac_header;
pheader = &ctx->aac_pheader;
version = &ctx->aac_version;
ngx_log_debug0(NGX_LOG_DEBUG_RTMP, s->connection->log, 0,
"codec: AAC header arrived");
}
@ -173,6 +180,7 @@ ngx_rtmp_codec_av(ngx_rtmp_session_t *s, ngx_rtmp_header_t *h,
if ((fmt & 0x0f) == NGX_RTMP_VIDEO_H264) {
header = &ctx->avc_header;
pheader = &ctx->avc_pheader;
version = &ctx->avc_version;
ngx_log_debug0(NGX_LOG_DEBUG_RTMP, s->connection->log, 0,
"codec: AVC/H264 header arrived");
}
@ -204,6 +212,11 @@ ngx_rtmp_codec_av(ngx_rtmp_session_t *s, ngx_rtmp_header_t *h,
*pheader = ngx_rtmp_append_shared_bufs(cscf, NULL, in);
ngx_rtmp_prepare_message(s, &ch, &lh, *pheader);
/* don't want zero as version value */
do {
*version = ++header_version;
} while (*version == 0);
return NGX_OK;
}