mirror of
https://github.com/zotanmew/nginx-rtmp-module.git
synced 2024-05-09 22:11:08 +02:00
added support for multiple aac/avc codecs per stream
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parent
c377e3b5c6
commit
266e206afc
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@ -11,6 +11,11 @@
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static ngx_int_t ngx_rtmp_codec_postconfiguration(ngx_conf_t *cf);
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/* Global header version is used to identify
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* incoming AAC/AVC header */
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static ngx_uint_t header_version;
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static ngx_rtmp_module_t ngx_rtmp_codec_module_ctx = {
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NULL, /* preconfiguration */
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ngx_rtmp_codec_postconfiguration, /* postconfiguration */
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@ -139,6 +144,7 @@ ngx_rtmp_codec_av(ngx_rtmp_session_t *s, ngx_rtmp_header_t *h,
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ngx_chain_t **header, **pheader;
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uint8_t fmt;
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ngx_rtmp_header_t ch, lh;
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ngx_uint_t *version;
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/* save AVC/AAC header */
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if ((h->type != NGX_RTMP_MSG_AUDIO
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@ -166,6 +172,7 @@ ngx_rtmp_codec_av(ngx_rtmp_session_t *s, ngx_rtmp_header_t *h,
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if (((fmt & 0xf0) >> 4) == NGX_RTMP_AUDIO_AAC) {
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header = &ctx->aac_header;
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pheader = &ctx->aac_pheader;
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version = &ctx->aac_version;
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ngx_log_debug0(NGX_LOG_DEBUG_RTMP, s->connection->log, 0,
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"codec: AAC header arrived");
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}
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@ -173,6 +180,7 @@ ngx_rtmp_codec_av(ngx_rtmp_session_t *s, ngx_rtmp_header_t *h,
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if ((fmt & 0x0f) == NGX_RTMP_VIDEO_H264) {
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header = &ctx->avc_header;
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pheader = &ctx->avc_pheader;
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version = &ctx->avc_version;
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ngx_log_debug0(NGX_LOG_DEBUG_RTMP, s->connection->log, 0,
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"codec: AVC/H264 header arrived");
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}
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@ -204,6 +212,11 @@ ngx_rtmp_codec_av(ngx_rtmp_session_t *s, ngx_rtmp_header_t *h,
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*pheader = ngx_rtmp_append_shared_bufs(cscf, NULL, in);
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ngx_rtmp_prepare_message(s, &ch, &lh, *pheader);
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/* don't want zero as version value */
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do {
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*version = ++header_version;
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} while (*version == 0);
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return NGX_OK;
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}
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@ -47,6 +47,9 @@ u_char * ngx_rtmp_get_video_codec_name(ngx_uint_t id);
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typedef struct {
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ngx_uint_t avc_version;
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ngx_uint_t aac_version;
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ngx_chain_t *avc_header;
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ngx_chain_t *aac_header;
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@ -283,7 +283,7 @@ ngx_rtmp_live_av(ngx_rtmp_session_t *s, ngx_rtmp_header_t *h,
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{
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ngx_rtmp_live_ctx_t *ctx, *pctx;
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ngx_rtmp_codec_ctx_t *codec_ctx;
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ngx_chain_t *out, *peer_out;
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ngx_chain_t *out, *peer_out, *header_out;
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ngx_rtmp_core_srv_conf_t *cscf;
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ngx_rtmp_live_app_conf_t *lacf;
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ngx_rtmp_session_t *ss;
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@ -291,6 +291,8 @@ ngx_rtmp_live_av(ngx_rtmp_session_t *s, ngx_rtmp_header_t *h,
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ngx_uint_t prio, peer_prio;
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ngx_uint_t peers, dropped_peers;
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uint8_t flv_fmt;
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size_t header_offset;
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ngx_uint_t header_version;
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lacf = ngx_rtmp_get_module_app_conf(s, ngx_rtmp_live_module);
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if (lacf == NULL) {
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@ -358,6 +360,27 @@ ngx_rtmp_live_av(ngx_rtmp_session_t *s, ngx_rtmp_header_t *h,
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}
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}
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codec_ctx = ngx_rtmp_get_module_ctx(s, ngx_rtmp_codec_module);
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header_out = NULL;
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header_offset = 0;
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header_version = 0;
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if (codec_ctx) {
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peer_out = NULL;
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if (h->type == NGX_RTMP_MSG_AUDIO) {
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if (codec_ctx->aac_pheader) {
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header_out = codec_ctx->aac_pheader;
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header_offset = offsetof(ngx_rtmp_live_ctx_t, aac_version);
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header_version = codec_ctx->aac_version;
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}
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} else {
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if (codec_ctx->avc_pheader) {
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header_out = codec_ctx->avc_pheader;
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header_offset = offsetof(ngx_rtmp_live_ctx_t, avc_version);
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header_version = codec_ctx->avc_version;
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}
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}
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}
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/* broadcast to all subscribers */
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for (pctx = ctx->stream->ctx; pctx; pctx = pctx->next) {
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if (pctx == ctx) {
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@ -378,31 +401,21 @@ ngx_rtmp_live_av(ngx_rtmp_session_t *s, ngx_rtmp_header_t *h,
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pctx->msg_mask |= (1 << h->type);
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ngx_rtmp_send_message(ss, peer_out, prio);
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ngx_rtmp_free_shared_chain(cscf, peer_out);
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/* send AVC/H264 header */
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codec_ctx = ngx_rtmp_get_module_ctx(s, ngx_rtmp_codec_module);
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if (codec_ctx) {
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peer_out = NULL;
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if (h->type == NGX_RTMP_MSG_AUDIO) {
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if (codec_ctx->aac_pheader) {
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peer_out = codec_ctx->aac_pheader;
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ngx_log_debug0(NGX_LOG_DEBUG_RTMP, ss->connection->log,
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0, "live: sending AAC header");
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}
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} else {
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if (codec_ctx->avc_pheader) {
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peer_out = codec_ctx->avc_pheader;
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ngx_log_debug0(NGX_LOG_DEBUG_RTMP, ss->connection->log,
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0, "live: sending AVC/H264 header");
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}
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}
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if (peer_out) {
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ngx_rtmp_send_message(ss, peer_out, prio);
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}
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}
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continue;
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}
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/* send AVC/H264 header */
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if (header_out && *(ngx_uint_t *)((u_char *)pctx + header_offset)
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!= header_version)
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{
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ngx_log_debug0(NGX_LOG_DEBUG_RTMP, ss->connection->log, 0,
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"live: sending codec header");
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if (ngx_rtmp_send_message(ss, header_out, prio) == NGX_OK) {
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*(ngx_uint_t *)((u_char *)pctx + header_offset)
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= header_version;
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}
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}
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/* push buffered data */
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peer_prio = prio;
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if (ngx_rtmp_send_message(ss, out, peer_prio) != NGX_OK) {
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@ -49,6 +49,8 @@ struct ngx_rtmp_live_ctx_s {
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uint32_t next_push;
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uint32_t last_audio;
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uint32_t last_video;
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ngx_uint_t aac_version;
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ngx_uint_t avc_version;
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};
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