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lavf/gif: add final_delay option.

This commit is contained in:
Clément Bœsch 2013-04-20 00:11:04 +02:00
parent a16c20569d
commit 67cc31d6c7
1 changed files with 5 additions and 0 deletions
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5
libavformat/gif.c
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@ -68,6 +68,7 @@ static int gif_image_write_header(AVIOContext *pb, int width, int height,
typedef struct {
AVClass *class; /** Class for private options. */
int loop;
int last_delay;
AVPacket *prev_pkt;
int duration;
} GIFContext;
@ -139,6 +140,8 @@ static int flush_packet(AVFormatContext *s, AVPacket *new)
if (new && new->pts != AV_NOPTS_VALUE)
gif->duration = av_clip_uint16(new->pts - gif->prev_pkt->pts);
else if (!new && gif->last_delay >= 0)
gif->duration = gif->last_delay;
/* graphic control extension block */
avio_w8(pb, 0x21);
@ -188,6 +191,8 @@ static int gif_write_trailer(AVFormatContext *s)
static const AVOption options[] = {
{ "loop", "Number of times to loop the output.", OFFSET(loop),
AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 65535, ENC },
{ "final_delay", "Force delay (in ms) after the last frame", OFFSET(last_delay),
AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 65535, ENC },
{ NULL },
};