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libavcodec/dvdsubdec: Add option forced_subs_only to only decode forced subtitle frames.

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Signed-off-by: Nicholas Robbins <nickrobbins@yahoo.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Nicholas Robbins 2014-09-20 07:53:44 -04:00 committed by Michael Niedermayer
parent 1cf28fd5f3
commit c7d21dee28
1 changed files with 5 additions and 0 deletions
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5
libavcodec/dvdsubdec.c
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@ -39,6 +39,7 @@ typedef struct DVDSubContext
uint8_t alpha[256];
uint8_t *buf;
int buf_size;
int forced_subs_only;
#ifdef DEBUG
int sub_id;
#endif
@ -548,6 +549,9 @@ static int dvdsub_decode(AVCodecContext *avctx,
if (!is_menu && find_smallest_bounding_rectangle(sub) == 0)
goto no_subtitle;
if (ctx->forced_subs_only && !(sub->rects[0]->flags & AV_SUBTITLE_FLAG_FORCED))
goto no_subtitle;
#if defined(DEBUG)
{
char ppm_name[32];
@ -652,6 +656,7 @@ static av_cold int dvdsub_close(AVCodecContext *avctx)
#define SD AV_OPT_FLAG_SUBTITLE_PARAM | AV_OPT_FLAG_DECODING_PARAM
static const AVOption options[] = {
{ "palette", "set the global palette", OFFSET(palette_str), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, SD },
{ "forced_subs_only", "Only show forced subtitles", OFFSET(forced_subs_only), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, SD},
{ NULL }
};
static const AVClass dvdsub_class = {