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authorMåns Rullgård <mans@mansr.com>2010-06-08 10:44:27 +0000
committerMåns Rullgård <mans@mansr.com>2010-06-08 10:44:27 +0000
commit5150dd532b142d7032854a362228dd40142a8e94 (patch)
tree808c56d29f1949f1af05c73f9c03dde6b1e191ef
parent6964d510e8328d04196b549f0e7149efd076b7b4 (diff)
downloadffmpeg-5150dd532b142d7032854a362228dd40142a8e94.tar.gz
matroska: move LFG state from muxer context to local variable
The LFG is only used in one place, so there is no need to keep it in the context. Originally committed as revision 23527 to svn://svn.ffmpeg.org/ffmpeg/trunk
-rw-r--r--libavformat/matroskaenc.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/libavformat/matroskaenc.c b/libavformat/matroskaenc.c
index e78d062cbe..2238c13ffc 100644
--- a/libavformat/matroskaenc.c
+++ b/libavformat/matroskaenc.c
@@ -83,7 +83,6 @@ typedef struct MatroskaMuxContext {
mkv_cues *cues;
mkv_track *tracks;
- AVLFG lfg;
unsigned int audio_buffer_size;
AVPacket cur_audio_pkt;
} MatroskaMuxContext;
@@ -699,8 +698,6 @@ static int mkv_write_header(AVFormatContext *s)
if (!strcmp(s->oformat->name, "webm")) mkv->mode = MODE_WEBM;
else mkv->mode = MODE_MATROSKAv2;
- av_lfg_init(&mkv->lfg, av_get_random_seed());
-
mkv->tracks = av_mallocz(s->nb_streams * sizeof(*mkv->tracks));
if (!mkv->tracks)
return AVERROR(ENOMEM);
@@ -736,8 +733,12 @@ static int mkv_write_header(AVFormatContext *s)
put_ebml_string(pb, MATROSKA_ID_TITLE, tag->value);
if (!(s->streams[0]->codec->flags & CODEC_FLAG_BITEXACT)) {
uint32_t segment_uid[4];
+ AVLFG lfg;
+
+ av_lfg_init(&lfg, av_get_random_seed());
+
for (i = 0; i < 4; i++)
- segment_uid[i] = av_lfg_get(&mkv->lfg);
+ segment_uid[i] = av_lfg_get(&lfg);
put_ebml_string(pb, MATROSKA_ID_MUXINGAPP , LIBAVFORMAT_IDENT);
put_ebml_string(pb, MATROSKA_ID_WRITINGAPP, LIBAVFORMAT_IDENT);