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to avoid writing invalid metadata, don't overwrite metadata from previous @setDataFrame / onMetaData invocations unless the metadata has actually changed

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This commit is contained in:
Jeffrey Wescott 2014-10-27 18:46:55 -07:00
parent 5fb4c99ca9
commit d069f36f86
1 changed files with 20 additions and 13 deletions
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33
ngx_rtmp_codec_module.c
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@ -839,9 +839,17 @@ ngx_rtmp_codec_meta_data(ngx_rtmp_session_t *s, ngx_rtmp_header_t *h,
ngx_memzero(&v, sizeof(v));
/* use -1 as a sign of unchanged data;
* 0 is a valid value for uncompressed audio */
/* use -1 as a sign of unchanged data */
v.width = -1;
v.height = -1;
v.duration = -1;
v.frame_rate = -1;
v.video_data_rate = -1;
v.video_codec_id_n = -1;
v.audio_data_rate = -1;
v.audio_codec_id_n = -1;
v.profile[0] = '\0';
v.level[0] = '\0';
/* FFmpeg sends a string in front of actal metadata; ignore it */
skip = !(in->buf->last > in->buf->pos
@ -854,18 +862,17 @@ ngx_rtmp_codec_meta_data(ngx_rtmp_session_t *s, ngx_rtmp_header_t *h,
return NGX_OK;
}
ctx->width = (ngx_uint_t) v.width;
ctx->height = (ngx_uint_t) v.height;
ctx->duration = (ngx_uint_t) v.duration;
ctx->frame_rate = (ngx_uint_t) v.frame_rate;
ctx->video_data_rate = (ngx_uint_t) v.video_data_rate;
ctx->video_codec_id = (ngx_uint_t) v.video_codec_id_n;
ctx->audio_data_rate = (ngx_uint_t) v.audio_data_rate;
ctx->audio_codec_id = (v.audio_codec_id_n == -1
? 0 : v.audio_codec_id_n == 0
if (v.width != -1) ctx->width = (ngx_uint_t) v.width;
if (v.height != -1) ctx->height = (ngx_uint_t) v.height;
if (v.duration != -1) ctx->duration = (ngx_uint_t) v.duration;
if (v.frame_rate != -1) ctx->frame_rate = (ngx_uint_t) v.frame_rate;
if (v.video_data_rate != -1) ctx->video_data_rate = (ngx_uint_t) v.video_data_rate;
if (v.video_codec_id_n != -1) ctx->video_codec_id = (ngx_uint_t) v.video_codec_id_n;
if (v.audio_data_rate != -1) ctx->audio_data_rate = (ngx_uint_t) v.audio_data_rate;
if (v.audio_codec_id_n != -1) ctx->audio_codec_id = (v.audio_codec_id_n == 0
? NGX_RTMP_AUDIO_UNCOMPRESSED : (ngx_uint_t) v.audio_codec_id_n);
ngx_memcpy(ctx->profile, v.profile, sizeof(v.profile));
ngx_memcpy(ctx->level, v.level, sizeof(v.level));
if (v.profile[0] != '\0') ngx_memcpy(ctx->profile, v.profile, sizeof(v.profile));
if (v.level[0] != '\0') ngx_memcpy(ctx->level, v.level, sizeof(v.level));
ngx_log_debug8(NGX_LOG_DEBUG_RTMP, s->connection->log, 0,
"codec: data frame: "