Commit 5f02844c authored by Clément Bœsch's avatar Clément Bœsch

Add MPL2 subtitles demuxer and decoder.

parent 2d3305e4
......@@ -51,6 +51,7 @@ version <next>:
- pp (postproc) filter ported from MPlayer
- NIST Sphere demuxer
- av_basename and av_dirname
- MPL2 subtitles demuxer and decoder
version 1.0:
......
......@@ -924,6 +924,7 @@ performance on systems without hardware floating point support).
@item DVD @tab X @tab X @tab X @tab X
@item JACOsub @tab X @tab X @tab @tab X
@item MicroDVD @tab X @tab X @tab @tab X
@item MPL2 @tab @tab X @tab @tab X
@item PGS @tab @tab @tab @tab X
@item RealText @tab @tab X @tab @tab X
@item SAMI @tab @tab X @tab @tab X
......
......@@ -292,6 +292,7 @@ OBJS-$(CONFIG_MPEG2VIDEO_DECODER) += mpeg12.o mpeg12data.o
OBJS-$(CONFIG_MPEG2VIDEO_ENCODER) += mpeg12enc.o mpeg12.o \
timecode.o
OBJS-$(CONFIG_MPEG4_VAAPI_HWACCEL) += vaapi_mpeg4.o
OBJS-$(CONFIG_MPL2_DECODER) += mpl2dec.o ass.o
OBJS-$(CONFIG_MSMPEG4V1_DECODER) += msmpeg4.o msmpeg4data.o
OBJS-$(CONFIG_MSMPEG4V2_DECODER) += msmpeg4.o msmpeg4data.o h263dec.o \
h263.o ituh263dec.o mpeg4videodec.o
......
......@@ -448,6 +448,7 @@ void avcodec_register_all(void)
REGISTER_DECODER(JACOSUB, jacosub);
REGISTER_DECODER(MICRODVD, microdvd);
REGISTER_ENCDEC (MOVTEXT, movtext);
REGISTER_DECODER(MPL2, mpl2);
REGISTER_DECODER(PGSSUB, pgssub);
REGISTER_DECODER(REALTEXT, realtext);
REGISTER_DECODER(SAMI, sami);
......
......@@ -466,6 +466,7 @@ enum AVCodecID {
AV_CODEC_ID_SUBVIEWER = MKBETAG('S','u','b','V'),
AV_CODEC_ID_SUBRIP = MKBETAG('S','R','i','p'),
AV_CODEC_ID_WEBVTT = MKBETAG('W','V','T','T'),
AV_CODEC_ID_MPL2 = MKBETAG('M','P','L','2'),
/* other specific kind of codecs (generally used for attachments) */
AV_CODEC_ID_FIRST_UNKNOWN = 0x18000, ///< A dummy ID pointing at the start of various fake codecs.
......
......@@ -2404,6 +2404,12 @@ static const AVCodecDescriptor codec_descriptors[] = {
.name = "microdvd",
.long_name = NULL_IF_CONFIG_SMALL("MicroDVD subtitle"),
},
{
.id = AV_CODEC_ID_MPL2,
.type = AVMEDIA_TYPE_SUBTITLE,
.name = "mpl2",
.long_name = NULL_IF_CONFIG_SMALL("MPL2 subtitle"),
},
{
.id = AV_CODEC_ID_EIA_608,
.type = AVMEDIA_TYPE_SUBTITLE,
......
/*
* Copyright (c) 2012 Clément Bœsch
*
* 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
* MPL2 subtitles decoder
*
* @see http://web.archive.org/web/20090328040233/http://napisy.ussbrowarek.org/mpl2-eng.html
*/
#include "avcodec.h"
#include "ass.h"
#include "libavutil/bprint.h"
static int mpl2_event_to_ass(AVBPrint *buf, const char *p)
{
if (*p == ' ')
p++;
while (*p) {
int got_style = 0;
while (*p && strchr("/\\_", *p)) {
if (*p == '/') av_bprintf(buf, "{\\i1}");
else if (*p == '\\') av_bprintf(buf, "{\\b1}");
else if (*p == '_') av_bprintf(buf, "{\\u1}");
got_style = 1;
p++;
}
while (*p && *p != '|') {
if (*p != '\r' && *p != '\n')
av_bprint_chars(buf, *p, 1);
p++;
}
if (*p == '|') {
if (got_style)
av_bprintf(buf, "{\\r}");
av_bprintf(buf, "\\N");
p++;
}
}
av_bprintf(buf, "\r\n");
return 0;
}
static int mpl2_decode_frame(AVCodecContext *avctx, void *data,
int *got_sub_ptr, AVPacket *avpkt)
{
AVBPrint buf;
AVSubtitle *sub = data;
const char *ptr = avpkt->data;
const int ts_start = av_rescale_q(avpkt->pts, avctx->time_base, (AVRational){1,100});
const int ts_duration = avpkt->duration != -1 ?
av_rescale_q(avpkt->duration, avctx->time_base, (AVRational){1,100}) : -1;
av_bprint_init(&buf, 0, AV_BPRINT_SIZE_UNLIMITED);
if (ptr && avpkt->size > 0 && *ptr && !mpl2_event_to_ass(&buf, ptr)) {
if (!av_bprint_is_complete(&buf)) {
av_bprint_finalize(&buf, NULL);
return AVERROR(ENOMEM);
}
ff_ass_add_rect(sub, buf.str, ts_start, ts_duration, 0);
}
*got_sub_ptr = sub->num_rects > 0;
av_bprint_finalize(&buf, NULL);
return avpkt->size;
}
AVCodec ff_mpl2_decoder = {
.name = "mpl2",
.long_name = NULL_IF_CONFIG_SMALL("MPL2 subtitle"),
.type = AVMEDIA_TYPE_SUBTITLE,
.id = AV_CODEC_ID_MPL2,
.decode = mpl2_decode_frame,
.init = ff_ass_subtitle_header_default,
};
......@@ -29,7 +29,7 @@
#include "libavutil/avutil.h"
#define LIBAVCODEC_VERSION_MAJOR 54
#define LIBAVCODEC_VERSION_MINOR 81
#define LIBAVCODEC_VERSION_MINOR 82
#define LIBAVCODEC_VERSION_MICRO 100
#define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
......
......@@ -219,6 +219,7 @@ OBJS-$(CONFIG_MPEGTS_DEMUXER) += mpegts.o isom.o
OBJS-$(CONFIG_MPEGTS_MUXER) += mpegtsenc.o
OBJS-$(CONFIG_MPEGVIDEO_DEMUXER) += mpegvideodec.o rawdec.o
OBJS-$(CONFIG_MPJPEG_MUXER) += mpjpeg.o
OBJS-$(CONFIG_MPL2_DEMUXER) += mpl2dec.o
OBJS-$(CONFIG_MSNWC_TCP_DEMUXER) += msnwc_tcp.o
OBJS-$(CONFIG_MTV_DEMUXER) += mtv.o
OBJS-$(CONFIG_MVI_DEMUXER) += mvi.o
......
......@@ -182,6 +182,7 @@ void av_register_all(void)
REGISTER_DEMUXER (MPEGTSRAW, mpegtsraw);
REGISTER_DEMUXER (MPEGVIDEO, mpegvideo);
REGISTER_MUXER (MPJPEG, mpjpeg);
REGISTER_DEMUXER (MPL2, mpl2);
REGISTER_DEMUXER (MSNWC_TCP, msnwc_tcp);
REGISTER_DEMUXER (MTV, mtv);
REGISTER_DEMUXER (MV, mv);
......
/*
* Copyright (c) 2012 Clément Bœsch
*
* 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
* MPL2 subtitles format demuxer
*/
#include "avformat.h"
#include "internal.h"
#include "subtitles.h"
typedef struct {
FFDemuxSubtitlesQueue q;
} MPL2Context;
static int mpl2_probe(AVProbeData *p)
{
int i;
char c;
int64_t start, end;
const unsigned char *ptr = p->buf;
const unsigned char *ptr_end = ptr + p->buf_size;
for (i = 0; i < 2; i++) {
if (sscanf(ptr, "[%"PRId64"][%"PRId64"]%c", &start, &end, &c) != 3 &&
sscanf(ptr, "[%"PRId64"][]%c", &start, &c) != 2)
return 0;
ptr += strcspn(ptr, "\r\n") + 1;
if (ptr >= ptr_end)
return 0;
}
return AVPROBE_SCORE_MAX;
}
static int read_ts(char **line, int64_t *pts_start, int *duration)
{
char c;
int len;
int64_t end;
if (sscanf(*line, "[%"PRId64"][]%c%n",
pts_start, &c, &len) >= 2) {
*duration = -1;
*line += len - 1;
return 0;
}
if (sscanf(*line, "[%"PRId64"][%"PRId64"]%c%n",
pts_start, &end, &c, &len) >= 3) {
*duration = end - *pts_start;
*line += len - 1;
return 0;
}
return -1;
}
static int mpl2_read_header(AVFormatContext *s)
{
MPL2Context *mpl2 = s->priv_data;
AVStream *st = avformat_new_stream(s, NULL);
int res = 0;
if (!st)
return AVERROR(ENOMEM);
avpriv_set_pts_info(st, 64, 1, 10);
st->codec->codec_type = AVMEDIA_TYPE_SUBTITLE;
st->codec->codec_id = AV_CODEC_ID_MPL2;
while (!url_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;
if (!read_ts(&p, &pts_start, &duration)) {
AVPacket *sub;
sub = ff_subtitles_queue_insert(&mpl2->q, p, strlen(p), 0);
if (!sub)
return AVERROR(ENOMEM);
sub->pos = pos;
sub->pts = pts_start;
sub->duration = duration;
}
}
ff_subtitles_queue_finalize(&mpl2->q);
return res;
}
static int mpl2_read_packet(AVFormatContext *s, AVPacket *pkt)
{
MPL2Context *mpl2 = s->priv_data;
return ff_subtitles_queue_read_packet(&mpl2->q, pkt);
}
static int mpl2_read_seek(AVFormatContext *s, int stream_index,
int64_t min_ts, int64_t ts, int64_t max_ts, int flags)
{
MPL2Context *mpl2 = s->priv_data;
return ff_subtitles_queue_seek(&mpl2->q, s, stream_index,
min_ts, ts, max_ts, flags);
}
static int mpl2_read_close(AVFormatContext *s)
{
MPL2Context *mpl2 = s->priv_data;
ff_subtitles_queue_clean(&mpl2->q);
return 0;
}
AVInputFormat ff_mpl2_demuxer = {
.name = "mpl2",
.long_name = NULL_IF_CONFIG_SMALL("MPL2 subtitles"),
.priv_data_size = sizeof(MPL2Context),
.read_probe = mpl2_probe,
.read_header = mpl2_read_header,
.read_packet = mpl2_read_packet,
.read_seek2 = mpl2_read_seek,
.read_close = mpl2_read_close,
.extensions = "txt,mpl2",
};
......@@ -30,8 +30,8 @@
#include "libavutil/avutil.h"
#define LIBAVFORMAT_VERSION_MAJOR 54
#define LIBAVFORMAT_VERSION_MINOR 50
#define LIBAVFORMAT_VERSION_MICRO 104
#define LIBAVFORMAT_VERSION_MINOR 51
#define LIBAVFORMAT_VERSION_MICRO 100
#define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \
LIBAVFORMAT_VERSION_MINOR, \
......
......@@ -10,6 +10,9 @@ fate-sub-movtext: CMD = md5 -i $(SAMPLES)/sub/MovText_capability_tester.mp4 -f a
FATE_SUBTITLES-$(call ENCDEC, MOVTEXT, MOV) += fate-sub-movtextenc
fate-sub-movtextenc: CMD = md5 -i $(SAMPLES)/sub/MovText_capability_tester.mp4 -map 0 -scodec mov_text -f mp4 -flags +bitexact -movflags frag_keyframe+empty_moov
FATE_SUBTITLES_ASS-$(call DEMDEC, MPL2, MPL2) += fate-sub-mpl2
fate-sub-mpl2: CMD = md5 -i $(SAMPLES)/sub/MPL2_capability_tester.txt -f ass
FATE_SUBTITLES_ASS-$(call DEMDEC, REALTEXT, REALTEXT) += fate-sub-realtext
fate-sub-realtext: CMD = md5 -i $(SAMPLES)/sub/RealText_capability_tester.rt -f ass
......
3c2fb62002aec3af16d83135a0e3b0fc
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