Updated sample test after rebasing. Please find the patch attached. On Tue, Oct 21, 2014 at 12:26 AM, Eejya Singh <singh.ee...@gmail.com> wrote:
> Added reference file for sample stl file. I've also fixed the indentation > errors. > > On Fri, Oct 17, 2014 at 7:06 PM, Eejya Singh <singh.ee...@gmail.com> > wrote: > >> Please find the revised patch for the STL demuxer and decoder attached. I >> am experiencing some network problems while rsyncing from the fate-server >> so I couldn't add the test .stl file. >> >> On Thu, Oct 16, 2014 at 2:46 PM, Clément Bœsch <u...@pkh.me> wrote: >> >>> On Thu, Oct 16, 2014 at 02:26:30AM +0530, Eejya Singh wrote: >>> > From: Eejya <singh.ee...@gmail.com> >>> > >>> > --- >>> > Changelog | 1 + >>> > doc/general.texi | 1 + >>> > libavcodec/Makefile | 1 + >>> > libavcodec/allcodecs.c | 1 + >>> > libavcodec/avcodec.h | 1 + >>> > libavcodec/codec_desc.c | 7 +++ >>> > libavcodec/textdec.c | 18 ++++++- >>> > libavformat/Makefile | 1 + >>> > libavformat/allformats.c | 1 + >>> > libavformat/stldec.c | 136 >>> +++++++++++++++++++++++++++++++++++++++++++++++ >>> > 10 files changed, 167 insertions(+), 1 deletion(-) >>> > create mode 100644 libavformat/stldec.c >>> > >>> >>> Please reply in the same thread when iterating the patch, it's easier for >>> us to track. >>> >>> > diff --git a/Changelog b/Changelog >>> > index b59058b..9626d4a 100644 >>> > --- a/Changelog >>> > +++ b/Changelog >>> > @@ -5,6 +5,7 @@ version <next>: >>> > - HEVC/H.265 RTP payload format (draft v6) packetizer >>> > - SUP/PGS subtitle demuxer >>> > - ffprobe -show_pixel_formats option >>> > +- STL subtitle demuxer and decoder >>> > >>> > version 2.4: >>> > - Icecast protocol >>> > diff --git a/doc/general.texi b/doc/general.texi >>> > index 2252f7b..681c5c9 100644 >>> > --- a/doc/general.texi >>> > +++ b/doc/general.texi >>> > @@ -1032,6 +1032,7 @@ performance on systems without hardware floating >>> point support). >>> > @item RealText @tab @tab X @tab @tab X >>> > @item SAMI @tab @tab X @tab @tab X >>> > @item SSA/ASS @tab X @tab X @tab X @tab X >>> >>> > +@item STL @tab @tab X @tab @tab X >>> >>> Maybe mention Spruce here >>> >>> [...] >>> > diff --git a/libavformat/stldec.c b/libavformat/stldec.c >>> > new file mode 100644 >>> > index 0000000..9e79720 >>> > --- /dev/null >>> > +++ b/libavformat/stldec.c >>> > @@ -0,0 +1,136 @@ >>> > +/* >>> > + * Copyright (c) 2014 Eejya Singh >>> > + * >>> > + * This file is part of FFmpeg. >>> > + * >>> > + * FFmpeg is free software; you can redistribute it and/or >>> > + * modify it under the terms of the GNU Lesser General Public >>> > + * License as published by the Free Software Foundation; either >>> > + * version 2.1 of the License, or (at your option) any later version. >>> > + * >>> > + * FFmpeg is distributed in the hope that it will be useful, >>> > + * but WITHOUT ANY WARRANTY; without even the implied warranty of >>> > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU >>> > + * Lesser General Public License for more details. >>> > + * >>> > + * You should have received a copy of the GNU Lesser General Public >>> > + * License along with FFmpeg; if not, write to the Free Software >>> > + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA >>> 02110-1301 USA >>> > + */ >>> > + >>> > +/** >>> > + * @file >>> > + * STL subtitles format demuxer >>> > + */ >>> >>> Maybe add a "@see" entry with a link to the specifications here (git grep >>> '@see http' for examples) >>> >>> Please also add a line breaks after the "*/" >>> >>> > +#include "avformat.h" >>> > +#include "internal.h" >>> > +#include "subtitles.h" >>> > +#include "libavutil/intreadwrite.h" >>> > +#include "libavutil/avstring.h" >>> > + >>> > +typedef struct { >>> > + FFDemuxSubtitlesQueue q; >>> > +} STLContext; >>> > + >>> > +static int stl_probe(AVProbeData *p) >>> > +{ >>> > + char c; >>> > + const unsigned char *ptr = p->buf; >>> > + >>> > + if (AV_RB24(ptr) == 0xEFBBBF) >>> > + ptr += 3; /* skip UTF-8 BOM */ >>> >>> > + while(*ptr=='\r' || *ptr=='\n' || *ptr=='$' || >>> !strncmp(ptr,"//",2)) >>> > + ptr+=ff_subtitles_next_line(ptr); >>> >>> Here and several times later in the file, the style is wrong. Please >>> check >>> how spaces are supposed to be. >>> >>> See http://ffmpeg.org/developer.html#toc-Coding-Rules-1 >>> >>> > + if (sscanf(ptr, "%*d:%*d:%*d:%*d , %*d:%*d:%*d:%*d , %c", &c) == >>> 1) >>> > + return AVPROBE_SCORE_MAX; >>> > + return 0; >>> >>> > +} >>> >>> One more line break here to separate the functions >>> >>> > +static int64_t get_pts(char **buf, int *duration) >>> > +{ >>> > + int hh1, mm1, ss1, ms1; >>> > + int hh2, mm2, ss2, ms2; >>> > + int len=0; >>> > + if (sscanf(*buf, "%2d:%2d:%2d:%2d , %2d:%2d:%2d:%2d , %n", >>> > + &hh1, &mm1, &ss1, &ms1, >>> > + &hh2, &mm2, &ss2, &ms2, &len) >= 8 && len>0) { >>> > + int64_t start = (hh1*3600LL + mm1*60LL + ss1) * 100LL + >>> ms1; >>> > + int64_t end = (hh2*3600LL + mm2*60LL + ss2) * 100LL + >>> ms2; >>> > + *duration = end - start; >>> > + *buf+=len; >>> > + return start; >>> > + } >>> > + return AV_NOPTS_VALUE; >>> >>> The indent of this function is wrong >>> >>> [...] >>> >>> Rest of the code LGTM. >>> >>> It would be nice if you could add a test for this. Pick a .stl file, try >>> to add weird cases like timestamps with and without spaces, with an UTF-8 >>> BOM, with random line breaks, use of '|', and with style >>> changes (for later). Not need for a huge file, just a sample that covers >>> most of the code. >>> >>> Move your samples in fate-suite/sub/, then add an entry in >>> tests/fate/subtitles.mak and use make fate-sub-stl GEN=1 so it creates >>> the >>> reference file. If we agree with the test, we'll upload the sample. >>> >>> Thanks. >>> >>> -- >>> Clément B. >>> >>> _______________________________________________ >>> ffmpeg-devel mailing list >>> ffmpeg-devel@ffmpeg.org >>> http://ffmpeg.org/mailman/listinfo/ffmpeg-devel >>> >>> >> >> >> -- >> Eejya Singh >> > > > > -- > Eejya Singh, > 2nd year undergraduate, > Computer Science, > BITS Pilani Goa Campus > -- Eejya Singh, 2nd year undergraduate, Computer Science, BITS Pilani Goa Campus
From 798bc500b2df2c90d4fe42b8418059ab1b51fb8a Mon Sep 17 00:00:00 2001 From: Eejya Singh <singh.ee...@gmail.com> Date: Tue, 21 Oct 2014 01:55:39 +0530 Subject: [PATCH] Added STL demuxer and decoder --- Changelog | 2 +- doc/general.texi | 1 + libavcodec/Makefile | 1 + libavcodec/allcodecs.c | 1 + libavcodec/avcodec.h | 1 + libavcodec/codec_desc.c | 7 +++ libavcodec/textdec.c | 18 +++++- libavformat/Makefile | 1 + libavformat/allformats.c | 1 + libavformat/stldec.c | 141 +++++++++++++++++++++++++++++++++++++++++++++++ tests/fate/subtitles.mak | 3 + tests/ref/fate/sub-stl | 29 ++++++++++ 12 files changed, 204 insertions(+), 2 deletions(-) create mode 100644 libavformat/stldec.c create mode 100644 tests/ref/fate/sub-stl diff --git a/Changelog b/Changelog index 1ab4364..99c4c71 100644 --- a/Changelog +++ b/Changelog @@ -6,7 +6,7 @@ version <next>: - SUP/PGS subtitle demuxer - ffprobe -show_pixel_formats option - CAST128 symmetric block cipher, ECB mode - +- STL subtitle demuxer and decoder version 2.4: - Icecast protocol - ported lenscorrection filter from frei0r filter diff --git a/doc/general.texi b/doc/general.texi index 2252f7b..0e79279 100644 --- a/doc/general.texi +++ b/doc/general.texi @@ -1032,6 +1032,7 @@ performance on systems without hardware floating point support). @item RealText @tab @tab X @tab @tab X @item SAMI @tab @tab X @tab @tab X @item SSA/ASS @tab X @tab X @tab X @tab X +@item Spruce format(STL)@tab @tab X @tab @tab X @item SubRip (SRT) @tab X @tab X @tab X @tab X @item SubViewer v1 @tab @tab X @tab @tab X @item SubViewer @tab @tab X @tab @tab X diff --git a/libavcodec/Makefile b/libavcodec/Makefile index 3d70313..1a0072a 100644 --- a/libavcodec/Makefile +++ b/libavcodec/Makefile @@ -429,6 +429,7 @@ OBJS-$(CONFIG_SONIC_LS_ENCODER) += sonic.o OBJS-$(CONFIG_SP5X_DECODER) += sp5xdec.o OBJS-$(CONFIG_SRT_DECODER) += srtdec.o ass.o OBJS-$(CONFIG_SRT_ENCODER) += srtenc.o ass_split.o +OBJS-$(CONFIG_STL_DECODER) += textdec.o ass.o OBJS-$(CONFIG_SUBRIP_DECODER) += srtdec.o ass.o OBJS-$(CONFIG_SUBRIP_ENCODER) += srtenc.o ass_split.o OBJS-$(CONFIG_SUBVIEWER1_DECODER) += textdec.o ass.o diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c index 7650543..d08abd8 100644 --- a/libavcodec/allcodecs.c +++ b/libavcodec/allcodecs.c @@ -490,6 +490,7 @@ void avcodec_register_all(void) REGISTER_DECODER(REALTEXT, realtext); REGISTER_DECODER(SAMI, sami); REGISTER_ENCDEC (SRT, srt); + REGISTER_DECODER(STL, stl); REGISTER_ENCDEC (SUBRIP, subrip); REGISTER_DECODER(SUBVIEWER, subviewer); REGISTER_DECODER(SUBVIEWER1, subviewer1); diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h index 42eb57b..eac3fc7 100644 --- a/libavcodec/avcodec.h +++ b/libavcodec/avcodec.h @@ -509,6 +509,7 @@ enum AVCodecID { AV_CODEC_ID_JACOSUB = MKBETAG('J','S','U','B'), AV_CODEC_ID_SAMI = MKBETAG('S','A','M','I'), AV_CODEC_ID_REALTEXT = MKBETAG('R','T','X','T'), + AV_CODEC_ID_STL = MKBETAG('S','p','T','L'), AV_CODEC_ID_SUBVIEWER1 = MKBETAG('S','b','V','1'), AV_CODEC_ID_SUBVIEWER = MKBETAG('S','u','b','V'), AV_CODEC_ID_SUBRIP = MKBETAG('S','R','i','p'), diff --git a/libavcodec/codec_desc.c b/libavcodec/codec_desc.c index 9e9728b..eeb4505 100644 --- a/libavcodec/codec_desc.c +++ b/libavcodec/codec_desc.c @@ -2635,6 +2635,13 @@ static const AVCodecDescriptor codec_descriptors[] = { .props = AV_CODEC_PROP_TEXT_SUB, }, { + .id = AV_CODEC_ID_STL, + .type = AVMEDIA_TYPE_SUBTITLE, + .name = "stl", + .long_name = NULL_IF_CONFIG_SMALL("Spruce subtitle format"), + .props = AV_CODEC_PROP_TEXT_SUB, + }, + { .id = AV_CODEC_ID_SUBVIEWER1, .type = AVMEDIA_TYPE_SUBTITLE, .name = "subviewer1", diff --git a/libavcodec/textdec.c b/libavcodec/textdec.c index 611fcc8..c9f02a2 100644 --- a/libavcodec/textdec.c +++ b/libavcodec/textdec.c @@ -88,7 +88,7 @@ AVCodec ff_text_decoder = { }; #endif -#if CONFIG_VPLAYER_DECODER || CONFIG_PJS_DECODER || CONFIG_SUBVIEWER1_DECODER +#if CONFIG_VPLAYER_DECODER || CONFIG_PJS_DECODER || CONFIG_SUBVIEWER1_DECODER || CONFIG_STL_DECODER static int linebreak_init(AVCodecContext *avctx) { @@ -113,6 +113,22 @@ AVCodec ff_vplayer_decoder = { }; #endif +#if CONFIG_STL_DECODER +#define stl_options options +DECLARE_CLASS(stl); + +AVCodec ff_stl_decoder = { + .name = "stl", + .long_name = NULL_IF_CONFIG_SMALL("Spruce subtitle format"), + .priv_data_size = sizeof(TextContext), + .type = AVMEDIA_TYPE_SUBTITLE, + .id = AV_CODEC_ID_STL, + .decode = text_decode_frame, + .init = linebreak_init, + .priv_class = &stl_decoder_class, +}; +#endif + #if CONFIG_PJS_DECODER #define pjs_options options DECLARE_CLASS(pjs); diff --git a/libavformat/Makefile b/libavformat/Makefile index 86064ea..62dc41c 100644 --- a/libavformat/Makefile +++ b/libavformat/Makefile @@ -404,6 +404,7 @@ OBJS-$(CONFIG_SPEEX_MUXER) += oggenc.o \ vorbiscomment.o OBJS-$(CONFIG_SRT_DEMUXER) += srtdec.o subtitles.o OBJS-$(CONFIG_SRT_MUXER) += srtenc.o +OBJS-$(CONFIG_STL_DEMUXER) += stldec.o subtitles.o OBJS-$(CONFIG_STR_DEMUXER) += psxstr.o OBJS-$(CONFIG_SUBVIEWER1_DEMUXER) += subviewer1dec.o subtitles.o OBJS-$(CONFIG_SUBVIEWER_DEMUXER) += subviewerdec.o subtitles.o diff --git a/libavformat/allformats.c b/libavformat/allformats.c index d54ed9b..bf81737 100644 --- a/libavformat/allformats.c +++ b/libavformat/allformats.c @@ -278,6 +278,7 @@ void av_register_all(void) REGISTER_MUXDEMUX(SPDIF, spdif); REGISTER_MUXDEMUX(SRT, srt); REGISTER_DEMUXER (STR, str); + REGISTER_DEMUXER (STL, stl); REGISTER_DEMUXER (SUBVIEWER1, subviewer1); REGISTER_DEMUXER (SUBVIEWER, subviewer); REGISTER_DEMUXER (SUP, sup); diff --git a/libavformat/stldec.c b/libavformat/stldec.c new file mode 100644 index 0000000..b84c7e9 --- /dev/null +++ b/libavformat/stldec.c @@ -0,0 +1,141 @@ +/* + * Copyright (c) 2014 Eejya Singh + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/** + * @file + * STL subtitles format demuxer + * @see https://documentation.apple.com/en/dvdstudiopro/usermanual/index.html#chapter=19%26section=13%26tasks=true + */ + +#include "avformat.h" +#include "internal.h" +#include "subtitles.h" +#include "libavutil/intreadwrite.h" +#include "libavutil/avstring.h" + +typedef struct { + FFDemuxSubtitlesQueue q; +} STLContext; + +static int stl_probe(AVProbeData *p) +{ + char c; + const unsigned char *ptr = p->buf; + + if (AV_RB24(ptr) == 0xEFBBBF) + ptr += 3; /* skip UTF-8 BOM */ + + while (*ptr == '\r' || *ptr == '\n' || *ptr == '$' || !strncmp(ptr, "//" , 2)) + ptr += ff_subtitles_next_line(ptr); + + if (sscanf(ptr, "%*d:%*d:%*d:%*d , %*d:%*d:%*d:%*d , %c", &c) == 1) + return AVPROBE_SCORE_MAX; + + return 0; +} + +static int64_t get_pts(char **buf, int *duration) +{ + int hh1, mm1, ss1, ms1; + int hh2, mm2, ss2, ms2; + int len = 0; + + if (sscanf(*buf, "%2d:%2d:%2d:%2d , %2d:%2d:%2d:%2d , %n", + &hh1, &mm1, &ss1, &ms1, + &hh2, &mm2, &ss2, &ms2, &len) >= 8 && len > 0) { + int64_t start = (hh1*3600LL + mm1*60LL + ss1) * 100LL + ms1; + int64_t end = (hh2*3600LL + mm2*60LL + ss2) * 100LL + ms2; + *duration = end - start; + *buf += len; + return start; + } + return AV_NOPTS_VALUE; +} + +static int stl_read_header(AVFormatContext *s) +{ + STLContext *stl = s->priv_data; + AVStream *st = avformat_new_stream(s, NULL); + + if (!st) + return AVERROR(ENOMEM); + avpriv_set_pts_info(st, 64, 1, 100); + st->codec->codec_type = AVMEDIA_TYPE_SUBTITLE; + st->codec->codec_id = AV_CODEC_ID_STL; + + while (!avio_feof(s->pb)) { + char line[4096]; + char *p = line; + const int64_t pos = avio_tell(s->pb); + int len = ff_get_line(s->pb, line, sizeof(line)); + int64_t pts_start; + int duration; + + if (!len) + break; + + line[strcspn(line, "\r\n")] = 0; + pts_start = get_pts(&p , &duration); + + if (pts_start != AV_NOPTS_VALUE) { + AVPacket *sub; + sub = ff_subtitles_queue_insert(&stl->q, p, strlen(p), 0); + if (!sub) + return AVERROR(ENOMEM); + sub->pos = pos; + sub->pts = pts_start; + sub->duration = duration; + } + } + ff_subtitles_queue_finalize(&stl->q); + return 0; +} +static int stl_read_packet(AVFormatContext *s, AVPacket *pkt) +{ + STLContext *stl = s->priv_data; + return ff_subtitles_queue_read_packet(&stl->q, pkt); +} + +static int stl_read_seek(AVFormatContext *s, int stream_index, + int64_t min_ts, int64_t ts, int64_t max_ts, int flags) +{ + STLContext *stl = s->priv_data; + return ff_subtitles_queue_seek(&stl->q, s, stream_index, + min_ts, ts, max_ts, flags); +} + +static int stl_read_close(AVFormatContext *s) +{ + STLContext *stl = s->priv_data; + ff_subtitles_queue_clean(&stl->q); + return 0; +} + +AVInputFormat ff_stl_demuxer = { + .name = "stl", + .long_name = NULL_IF_CONFIG_SMALL("Spruce subtitle format"), + .priv_data_size = sizeof(STLContext), + .read_probe = stl_probe, + .read_header = stl_read_header, + .read_packet = stl_read_packet, + .read_seek2 = stl_read_seek, + .read_close = stl_read_close, + .extensions = "stl", +}; diff --git a/tests/fate/subtitles.mak b/tests/fate/subtitles.mak index 9243178..53cd4cb 100644 --- a/tests/fate/subtitles.mak +++ b/tests/fate/subtitles.mak @@ -37,6 +37,9 @@ fate-sub-sami: CMD = fmtstdout ass -i $(TARGET_SAMPLES)/sub/SAMI_capability_test FATE_SUBTITLES_ASS-$(call DEMDEC, SRT, SUBRIP) += fate-sub-srt fate-sub-srt: CMD = fmtstdout ass -i $(TARGET_SAMPLES)/sub/SubRip_capability_tester.srt +FATE_SUBTITLES_ASS-$(call DEMDEC, STL, STL) += fate-sub-stl +fate-sub-stl: CMD = fmtstdout ass -i $(TARGET_SAMPLES)/sub/STL_capability_tester.stl + FATE_SUBTITLES-$(call ALLYES, MOV_DEMUXER MOVTEXT_DECODER SUBRIP_ENCODER SRT_MUXER) += fate-sub-subripenc fate-sub-subripenc: CMD = fmtstdout srt -i $(TARGET_SAMPLES)/sub/MovText_capability_tester.mp4 -scodec subrip diff --git a/tests/ref/fate/sub-stl b/tests/ref/fate/sub-stl new file mode 100644 index 0000000..73a0dcf --- /dev/null +++ b/tests/ref/fate/sub-stl @@ -0,0 +1,29 @@ +[Script Info] +; Script generated by FFmpeg/Lavc +ScriptType: v4.00+ +PlayResX: 384 +PlayResY: 288 + +[V4+ Styles] +Format: Name, Fontname, Fontsize, PrimaryColour, SecondaryColour, OutlineColour, BackColour, Bold, Italic, Underline, StrikeOut, ScaleX, ScaleY, Spacing, Angle, BorderStyle, Outline, Shadow, Alignment, MarginL, MarginR, MarginV, Encoding +Style: Default,Arial,16,&Hffffff,&Hffffff,&H0,&H0,0,0,0,0,100,100,0,0,1,1,0,2,10,10,10,0 + +[Events] +Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text +Dialogue: 0,0:00:31.02,0:00:33.00,Default,,0,0,0,,Hello, my name is Axel Kornmesser. +Dialogue: 0,0:00:45.02,0:00:49.13,Default,,0,0,0,,It is always a pleasure to work with ESA astronomers. +Dialogue: 0,0:00:49.13,0:00:52.03,Default,,0,0,0,,The "Eyes on The Skies" documentary +Dialogue: 0,0:00:52.03,0:00:55.09,Default,,0,0,0,,was our second collaboration +Dialogue: 0,0:00:55.09,0:00:58.07,Default,,0,0,0,,after a great \Nexperience in 2005, +Dialogue: 0,0:00:58.07,0:00:59.20,Default,,0,0,0,,when \Nwe did the story about the +Dialogue: 0,0:00:59.20,0:01:04.01,Default,,0,0,0,,Hubble Telescope "15 Years of Discovery". +Dialogue: 0,0:01:04.16,0:01:07.04,Default,,0,0,0,,It was a lot of fun again. +Dialogue: 0,0:01:15.04,0:01:18.16,Default,,0,0,0,,We usually \N don't get the final film \Nbefore we start composing +Dialogue: 0,0:01:18.21,0:01:22.02,Default,,0,0,0,,We had a script and many details about the story, +Dialogue: 0,0:01:22.10,0:01:26.08,Default,,0,0,0,,and so we worked\N in parallel \Nin the movie production +Dialogue: 0,0:01:27.04,0:01:30.17,Default,,0,0,0,,The largest part of \N the soundtrack \Nwas done without seeing a movie +Dialogue: 0,0:01:30.17,0:01:36.06,Default,,0,0,0,,It was no problem, but very inspiring \Nand a free working process. +Dialogue: 0,0:02:08.13,0:02:10.23,Default,,0,0,0,,Galileo's theme is one of my favourites. +Dialogue: 0,0:02:10.23,0:02:14.10,Default,,0,0,0,,We did a lot of different versions \Nabout the central theme. +Dialogue: 0,0:02:14.10,0:02:18.02,Default,,0,0,0,,For the 17th century \N we used a nice harpsichord +Dialogue: 0,0:02:19.05,0:02:22.09,Default,,0,0,0,,and so we landed directly into Galileo's time. -- 1.9.1
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