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srtenc: Add timing-less "subrip" encoder.

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Unsurprisingly, if a timing-less subrip decoder is desireable, an
encoder is as well. With this in place, we can move on to remove
the use of the old encoder/decoder with embedded timing and move
all timing handling the (de)muxer where they belong.

Signed-off-by: Philip Langdale <philipl@overt.org>
This commit is contained in:
Philip Langdale 2012-08-12 14:18:35 -07:00
parent 6af680fa07
commit 6057de19b5
8 changed files with 37 additions and 13 deletions
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1
Changelog
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@ -46,6 +46,7 @@ version next:
- asetpts filter
- hue filter
- ICO muxer
- SubRip encoder and decoder without embedded timing
version 0.11:

1
libavcodec/Makefile
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@ -409,6 +409,7 @@ OBJS-$(CONFIG_SP5X_DECODER) += sp5xdec.o mjpegdec.o mjpeg.o
OBJS-$(CONFIG_SRT_DECODER) += srtdec.o ass.o
OBJS-$(CONFIG_SRT_ENCODER) += srtenc.o ass_split.o
OBJS-$(CONFIG_SUBRIP_DECODER) += srtdec.o ass.o
OBJS-$(CONFIG_SUBRIP_ENCODER) += srtenc.o ass_split.o
OBJS-$(CONFIG_SUBVIEWER_DECODER) += subviewerdec.o ass.o
OBJS-$(CONFIG_SUNRAST_DECODER) += sunrast.o
OBJS-$(CONFIG_SUNRAST_ENCODER) += sunrastenc.o

2
libavcodec/allcodecs.c
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@ -415,7 +415,7 @@ void avcodec_register_all(void)
REGISTER_DECODER (REALTEXT, realtext);
REGISTER_DECODER (SAMI, sami);
REGISTER_ENCDEC (SRT, srt);
REGISTER_DECODER (SUBRIP, subrip);
REGISTER_ENCDEC (SUBRIP, subrip);
REGISTER_DECODER (SUBVIEWER, subviewer);
REGISTER_ENCDEC (XSUB, xsub);

39
libavcodec/srtenc.c
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@ -252,16 +252,18 @@ static int srt_encode_frame(AVCodecContext *avctx,
dialog = ff_ass_split_dialog(s->ass_ctx, sub->rects[i]->ass, 0, &num);
for (; dialog && num--; dialog++) {
int sh, sm, ss, sc = 10 * dialog->start;
int eh, em, es, ec = 10 * dialog->end;
sh = sc/3600000; sc -= 3600000*sh;
sm = sc/ 60000; sc -= 60000*sm;
ss = sc/ 1000; sc -= 1000*ss;
eh = ec/3600000; ec -= 3600000*eh;
em = ec/ 60000; ec -= 60000*em;
es = ec/ 1000; ec -= 1000*es;
srt_print(s,"%d\r\n%02d:%02d:%02d,%03d --> %02d:%02d:%02d,%03d\r\n",
++s->count, sh, sm, ss, sc, eh, em, es, ec);
if (avctx->codec->id == CODEC_ID_SRT) {
int sh, sm, ss, sc = 10 * dialog->start;
int eh, em, es, ec = 10 * dialog->end;
sh = sc/3600000; sc -= 3600000*sh;
sm = sc/ 60000; sc -= 60000*sm;
ss = sc/ 1000; sc -= 1000*ss;
eh = ec/3600000; ec -= 3600000*eh;
em = ec/ 60000; ec -= 60000*em;
es = ec/ 1000; ec -= 1000*es;
srt_print(s,"%d\r\n%02d:%02d:%02d,%03d --> %02d:%02d:%02d,%03d\r\n",
++s->count, sh, sm, ss, sc, eh, em, es, ec);
}
s->alignment_applied = 0;
s->dialog_start = s->ptr - 2;
srt_style_apply(s, dialog->style);
@ -289,9 +291,10 @@ static int srt_encode_close(AVCodecContext *avctx)
return 0;
}
#if CONFIG_SRT_ENCODER
AVCodec ff_srt_encoder = {
.name = "srt",
.long_name = NULL_IF_CONFIG_SMALL("SubRip subtitle"),
.long_name = NULL_IF_CONFIG_SMALL("SubRip subtitle with embedded timing"),
.type = AVMEDIA_TYPE_SUBTITLE,
.id = AV_CODEC_ID_SRT,
.priv_data_size = sizeof(SRTContext),
@ -299,3 +302,17 @@ AVCodec ff_srt_encoder = {
.encode = srt_encode_frame,
.close = srt_encode_close,
};
#endif
#if CONFIG_SUBRIP_ENCODER
AVCodec ff_subrip_encoder = {
.name = "subrip",
.long_name = NULL_IF_CONFIG_SMALL("SubRip subtitle"),
.type = AVMEDIA_TYPE_SUBTITLE,
.id = AV_CODEC_ID_SUBRIP,
.priv_data_size = sizeof(SRTContext),
.init = srt_encode_init,
.encode = srt_encode_frame,
.close = srt_encode_close,
};
#endif

2
libavcodec/version.h
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@ -27,7 +27,7 @@
*/
#define LIBAVCODEC_VERSION_MAJOR 54
#define LIBAVCODEC_VERSION_MINOR 52
#define LIBAVCODEC_VERSION_MINOR 53
#define LIBAVCODEC_VERSION_MICRO 100
#define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \

1
libavformat/srtenc.c
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@ -42,6 +42,7 @@ static int srt_write_header(AVFormatContext *avf)
return AVERROR(EINVAL);
}
if (avf->streams[0]->codec->codec_id != AV_CODEC_ID_TEXT &&
avf->streams[0]->codec->codec_id != AV_CODEC_ID_SUBRIP &&
avf->streams[0]->codec->codec_id != AV_CODEC_ID_SRT) {
av_log(avf, AV_LOG_ERROR,
"Unsupported subtitles codec: %s\n",

3
tests/fate/subtitles.mak
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@ -19,6 +19,9 @@ fate-sub-sami: CMD = md5 -i $(SAMPLES)/sub/SAMI_capability_tester.smi -f ass
FATE_SUBTITLES += fate-sub-srt
fate-sub-srt: CMD = md5 -i $(SAMPLES)/sub/SubRip_capability_tester.srt -f ass
FATE_SUBTITLES += fate-sub-subripenc
fate-sub-subripenc: CMD = md5 -i $(SAMPLES)/sub/MovText_capability_tester.mp4 -scodec subrip -f srt
FATE_SUBTITLES += fate-sub-subviewer
fate-sub-subviewer: CMD = md5 -i $(SAMPLES)/sub/SubViewer_capability_tester.sub -f ass

1
tests/ref/fate/sub-subripenc Normal file
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@ -0,0 +1 @@
bd520f85238abf9df292374aed54681a