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implemented timeline dash

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This commit is contained in:
Roman Arutyunyan 2013-11-12 19:48:49 +04:00
parent 37033ed8c0
commit fe4877f216
1 changed files with 62 additions and 28 deletions
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90
dash/ngx_rtmp_dash_module.c
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@ -166,10 +166,11 @@ ngx_rtmp_dash_rename_file(u_char *src, u_char *dst)
static ngx_int_t
ngx_rtmp_dash_write_playlist(ngx_rtmp_session_t *s)
{
u_char *p;
u_char *p, *last;
ssize_t n;
ngx_fd_t fd;
ngx_str_t playlist, playlist_bak;
ngx_uint_t i;
ngx_rtmp_dash_ctx_t *ctx;
ngx_rtmp_codec_ctx_t *codec_ctx;
ngx_rtmp_dash_app_conf_t *dacf;
@ -204,7 +205,8 @@ ngx_rtmp_dash_write_playlist(ngx_rtmp_session_t *s)
" type=\"dynamic\"\n" \
" xmlns=\"urn:mpeg:dash:schema:mpd:2011\"\n" \
" availabilityStartTime=\"%V\"\n" \
" minBufferTime=\"PT3S\"\n" \
" minimumUpdatePeriod=\"PT%uiS\"\n" \
" minBufferTime=\"PT1S\"\n" \
" timeShiftBufferDepth=\"PT0H0M0.00S\"\n" \
" profiles=\"urn:mpeg:dash:profile:isoff-live:2011\">\n" \
" <Period start=\"PT0S\" id=\"dash\">\n"
@ -229,14 +231,22 @@ ngx_rtmp_dash_write_playlist(ngx_rtmp_session_t *s)
" <SegmentTemplate\n" \
" presentationTimeOffset=\"0\"\n" \
" timescale=\"1000\"\n" \
" duration=\"%ui\"\n" \
" media=\"%V-$Number$.m4v\"\n" \
" startNumber=\"0\"\n" \
" initialization=\"%V-init.m4v\"/>\n" \
" media=\"%V-$Time$.m4v\"\n" \
" initialization=\"%V-init.m4v\">\n" \
" <SegmentTimeline>\n"
#define NGX_RTMP_DASH_MANIFEST_VIDEO_FOOTER \
" </SegmentTimeline>\n" \
" </SegmentTemplate>\n" \
" </Representation>\n" \
" </AdaptationSet>\n"
#define NGX_RTMP_DASH_MANIFEST_TIME \
" <S t=\"%uD\" d=\"%uD\"/>\n"
#define NGX_RTMP_DASH_MANIFEST_AUDIO \
" <AdaptationSet\n" \
" segmentAlignment=\"true\">\n" \
@ -254,10 +264,14 @@ ngx_rtmp_dash_write_playlist(ngx_rtmp_session_t *s)
" <SegmentTemplate\n" \
" presentationTimeOffset=\"0\"\n" \
" timescale=\"1000\"\n" \
" duration=\"%ui\"\n" \
" media=\"%V-$Number$.m4a\"\n" \
" startNumber=\"0\"\n" \
" initialization=\"%V-init.m4a\"/>\n" \
" media=\"%V-$Time$.m4a\"\n" \
" initialization=\"%V-init.m4a\">\n" \
" <SegmentTimeline>\n"
#define NGX_RTMP_DASH_MANIFEST_AUDIO_FOOTER \
" </SegmentTimeline>\n" \
" </SegmentTemplate>\n" \
" </Representation>\n" \
" </AdaptationSet>\n"
@ -266,36 +280,54 @@ ngx_rtmp_dash_write_playlist(ngx_rtmp_session_t *s)
" </Period>\n" \
"</MPD>\n"
p = ngx_snprintf(buffer, sizeof(buffer), NGX_RTMP_DASH_MANIFEST_HEADER,
&ctx->start_time);
last = buffer + sizeof(buffer);
p = ngx_slprintf(buffer, last, NGX_RTMP_DASH_MANIFEST_HEADER,
&ctx->start_time, (ngx_uint_t) (dacf->fraglen / 1000));
n = ngx_write_fd(fd, buffer, p - buffer);
if (ctx->has_video) {
p = ngx_snprintf(buffer, sizeof(buffer), NGX_RTMP_DASH_MANIFEST_VIDEO,
p = ngx_slprintf(buffer, last, NGX_RTMP_DASH_MANIFEST_VIDEO,
codec_ctx->width,
codec_ctx->height,
codec_ctx->frame_rate,
codec_ctx->width,
codec_ctx->height,
codec_ctx->frame_rate,
(ngx_uint_t) dacf->fraglen,
&ctx->name,
&ctx->name);
for (i = 0; i <= ctx->id; i++) {
p = ngx_slprintf(p, last, NGX_RTMP_DASH_MANIFEST_TIME,
(uint32_t) dacf->fraglen * i,
(uint32_t) dacf->fraglen);
}
p = ngx_slprintf(p, last, NGX_RTMP_DASH_MANIFEST_VIDEO_FOOTER);
n = ngx_write_fd(fd, buffer, p - buffer);
}
if (ctx->has_audio) {
p = ngx_snprintf(buffer, sizeof(buffer), NGX_RTMP_DASH_MANIFEST_AUDIO,
p = ngx_slprintf(buffer, last, NGX_RTMP_DASH_MANIFEST_AUDIO,
codec_ctx->audio_codec_id == NGX_RTMP_AUDIO_AAC ?
"40.2" : "6b",
codec_ctx->sample_rate,
(ngx_uint_t) dacf->fraglen,
&ctx->name,
&ctx->name);
for (i = 0; i <= ctx->id; i++) {
p = ngx_slprintf(p, last, NGX_RTMP_DASH_MANIFEST_TIME,
(uint32_t) dacf->fraglen * i,
(uint32_t) dacf->fraglen);
}
p = ngx_slprintf(p, last, NGX_RTMP_DASH_MANIFEST_AUDIO_FOOTER);
n = ngx_write_fd(fd, buffer, p - buffer);
}
p = ngx_snprintf(buffer, sizeof(buffer), NGX_RTMP_DASH_MANIFEST_FOOTER);
p = ngx_slprintf(buffer, last, NGX_RTMP_DASH_MANIFEST_FOOTER);
n = ngx_write_fd(fd, buffer, p - buffer);
if (n < 0) {
@ -412,14 +444,15 @@ ngx_rtmp_dash_write_init_segments(ngx_rtmp_session_t *s)
static void
ngx_rtmp_dash_close_fragment(ngx_rtmp_session_t *s, ngx_rtmp_dash_track_t *t)
{
u_char *pos, *pos1;
size_t left;
ssize_t n;
ngx_fd_t fd;
ngx_buf_t b;
ngx_rtmp_dash_ctx_t *ctx;
u_char *pos, *pos1;
size_t left;
ssize_t n;
ngx_fd_t fd;
ngx_buf_t b;
ngx_rtmp_dash_ctx_t *ctx;
ngx_rtmp_dash_app_conf_t *dacf;
static u_char buffer[NGX_RTMP_DASH_BUFSIZE];
static u_char buffer[NGX_RTMP_DASH_BUFSIZE];
if (!t->opened) {
return;
@ -428,6 +461,7 @@ ngx_rtmp_dash_close_fragment(ngx_rtmp_session_t *s, ngx_rtmp_dash_track_t *t)
ngx_log_debug2(NGX_LOG_DEBUG_RTMP, s->connection->log, 0,
"dash: close fragment id=%ui, type=%c", t->id, t->type);
dacf = ngx_rtmp_get_module_app_conf(s, ngx_rtmp_dash_module);
ctx = ngx_rtmp_get_module_ctx(s, ngx_rtmp_dash_module);
b.start = buffer;
@ -454,8 +488,8 @@ ngx_rtmp_dash_close_fragment(ngx_rtmp_session_t *s, ngx_rtmp_dash_track_t *t)
/* move the data down to make room for the headers */
*ngx_sprintf(ctx->stream.data + ctx->stream.len, "%ui.m4%c",
t->id, t->type) = 0;
*ngx_sprintf(ctx->stream.data + ctx->stream.len, "%uD.m4%c",
(uint32_t) (t->id * dacf->fraglen), t->type) = 0;
fd = ngx_open_file(ctx->stream.data, NGX_FILE_RDWR,
NGX_FILE_TRUNCATE, NGX_FILE_DEFAULT_ACCESS);
@ -672,8 +706,8 @@ ngx_rtmp_dash_publish(ngx_rtmp_session_t *s, ngx_rtmp_publish_t *v)
ctx->stream.len = p - ctx->playlist.data + 1;
ctx->stream.data = ngx_palloc(s->connection->pool,
ctx->stream.len + NGX_INT_T_LEN +
sizeof("xxxx.m4x"));
ctx->stream.len + NGX_INT32_LEN +
sizeof(".m4x"));
ngx_memcpy(ctx->stream.data, ctx->playlist.data, ctx->stream.len - 1);
ctx->stream.data[ctx->stream.len - 1] = '-';