[SCM] libav/experimental: Add 'disposition' bitfield to AVStream and use it for both muxing and demuxing of matroska and nut.
siretart at users.alioth.debian.org
siretart at users.alioth.debian.org
Sun Jun 30 16:16:31 UTC 2013
The following commit has been merged in the experimental branch:
commit 90c2295b24e9fa0c857e459088d18945a6681ef0
Author: Evgeniy Stepanov <eugeni.stepanov at gmail.com>
Date: Fri Mar 7 19:25:09 2008 +0000
Add 'disposition' bitfield to AVStream and use it for both muxing and demuxing
of matroska and nut.
Originally committed as revision 12358 to svn://svn.ffmpeg.org/ffmpeg/trunk
diff --git a/ffmpeg.c b/ffmpeg.c
index dc1c66b..cd04727 100644
--- a/ffmpeg.c
+++ b/ffmpeg.c
@@ -1592,6 +1592,8 @@ static int av_encode(AVFormatContext **output_files,
av_strlcpy(ost->st->language, ist->st->language,
sizeof(ost->st->language));
+ ost->st->disposition = ist->st->disposition;
+
if (ost->st->stream_copy) {
/* if stream_copy is selected, no need to decode or encode */
codec->codec_id = icodec->codec_id;
diff --git a/libavformat/avformat.h b/libavformat/avformat.h
index ad186e4..9a9125a 100644
--- a/libavformat/avformat.h
+++ b/libavformat/avformat.h
@@ -22,7 +22,7 @@
#define FFMPEG_AVFORMAT_H
#define LIBAVFORMAT_VERSION_MAJOR 52
-#define LIBAVFORMAT_VERSION_MINOR 7
+#define LIBAVFORMAT_VERSION_MINOR 8
#define LIBAVFORMAT_VERSION_MICRO 0
#define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \
@@ -278,6 +278,13 @@ typedef struct AVIndexEntry {
int min_distance; /**< min distance between this and the previous keyframe, used to avoid unneeded searching */
} AVIndexEntry;
+#define AV_DISPOSITION_DEFAULT 0x0001
+#define AV_DISPOSITION_DUB 0x0002
+#define AV_DISPOSITION_ORIGINAL 0x0004
+#define AV_DISPOSITION_COMMENT 0x0008
+#define AV_DISPOSITION_LYRICS 0x0010
+#define AV_DISPOSITION_KARAOKE 0x0020
+
/**
* Stream structure.
* New fields can be added to the end with minor version bumps.
@@ -357,6 +364,8 @@ typedef struct AVStream {
int64_t pts_buffer[MAX_REORDER_DELAY+1];
char *filename; /**< source filename of the stream */
+
+ int disposition; /**< AV_DISPOSITION_* bitfield */
} AVStream;
#define AV_PROGRAM_RUNNING 1
diff --git a/libavformat/matroskadec.c b/libavformat/matroskadec.c
index d9fdcec..61aacb7 100644
--- a/libavformat/matroskadec.c
+++ b/libavformat/matroskadec.c
@@ -2298,6 +2298,9 @@ matroska_read_header (AVFormatContext *s,
if (strcmp(track->language, "und"))
strcpy(st->language, track->language);
+ if (track->flags & MATROSKA_TRACK_DEFAULT)
+ st->disposition |= AV_DISPOSITION_DEFAULT;
+
if (track->default_duration)
av_reduce(&st->codec->time_base.num, &st->codec->time_base.den,
track->default_duration, 1000000000, 30000);
diff --git a/libavformat/matroskaenc.c b/libavformat/matroskaenc.c
index d096f72..44465a3 100644
--- a/libavformat/matroskaenc.c
+++ b/libavformat/matroskaenc.c
@@ -550,6 +550,8 @@ static int mkv_write_tracks(AVFormatContext *s)
else
put_ebml_string(pb, MATROSKA_ID_TRACKLANGUAGE, "und");
+ put_ebml_uint(pb, MATROSKA_ID_TRACKFLAGDEFAULT, !!(st->disposition & AV_DISPOSITION_DEFAULT));
+
// look for a codec ID string specific to mkv to use,
// if none are found, use AVI codes
for (j = 0; ff_mkv_codec_tags[j].id != CODEC_ID_NONE; j++) {
diff --git a/libavformat/nut.c b/libavformat/nut.c
index 4f6d319..e790691 100644
--- a/libavformat/nut.c
+++ b/libavformat/nut.c
@@ -68,3 +68,14 @@ void ff_nut_add_sp(NUTContext *nut, int64_t pos, int64_t back_ptr, int64_t ts){
av_free(node);
}
}
+
+const Dispositions ff_nut_dispositions[] = {
+ {"default" , AV_DISPOSITION_DEFAULT},
+ {"dub" , AV_DISPOSITION_DUB},
+ {"original" , AV_DISPOSITION_ORIGINAL},
+ {"comment" , AV_DISPOSITION_COMMENT},
+ {"lyrics" , AV_DISPOSITION_LYRICS},
+ {"karaoke" , AV_DISPOSITION_KARAOKE},
+ {"" , 0}
+};
+
diff --git a/libavformat/nut.h b/libavformat/nut.h
index 4dee3a8..2df58fb 100644
--- a/libavformat/nut.h
+++ b/libavformat/nut.h
@@ -99,10 +99,17 @@ typedef struct {
extern const AVCodecTag ff_nut_subtitle_tags[];
+typedef struct {
+ char str[9];
+ int flag;
+} Dispositions;
+
void ff_nut_reset_ts(NUTContext *nut, AVRational time_base, int64_t val);
int64_t ff_lsb2full(StreamContext *stream, int64_t lsb);
int ff_nut_sp_pos_cmp(syncpoint_t *a, syncpoint_t *b);
int ff_nut_sp_pts_cmp(syncpoint_t *a, syncpoint_t *b);
void ff_nut_add_sp(NUTContext *nut, int64_t pos, int64_t back_ptr, int64_t ts);
+extern const Dispositions ff_nut_dispositions[];
+
#endif /* FFMPEG_NUT_H */
diff --git a/libavformat/nutdec.c b/libavformat/nutdec.c
index 409cd7c..a4769d4 100644
--- a/libavformat/nutdec.c
+++ b/libavformat/nutdec.c
@@ -371,6 +371,19 @@ static int decode_stream_header(NUTContext *nut){
return 0;
}
+static void set_disposition_bits(AVFormatContext* avf, char* value, int stream_id){
+ int flag = 0, i;
+ for (i=0; ff_nut_dispositions[i].flag; ++i) {
+ if (!strcmp(ff_nut_dispositions[i].str, value))
+ flag = ff_nut_dispositions[i].flag;
+ }
+ if (!flag)
+ av_log(avf, AV_LOG_INFO, "unknown disposition type '%s'\n", value);
+ for (i = 0; i < avf->nb_streams; ++i)
+ if (stream_id == i || stream_id == -1)
+ avf->streams[i]->disposition |= flag;
+}
+
static int decode_info_header(NUTContext *nut){
AVFormatContext *s= nut->avf;
ByteIOContext *bc = s->pb;
@@ -412,6 +425,11 @@ static int decode_info_header(NUTContext *nut){
type= "v";
}
+ if (stream_id_plus1 < 0 || stream_id_plus1 > s->nb_streams) {
+ av_log(s, AV_LOG_ERROR, "invalid stream id for info packet\n");
+ continue;
+ }
+
if(chapter_id==0 && !strcmp(type, "UTF-8")){
if (!strcmp(name, "Author"))
av_strlcpy(s->author , str_value, sizeof(s->author));
@@ -421,6 +439,8 @@ static int decode_info_header(NUTContext *nut){
av_strlcpy(s->copyright, str_value, sizeof(s->copyright));
else if(!strcmp(name, "Description"))
av_strlcpy(s->comment , str_value, sizeof(s->comment));
+ else if(!strcmp(name, "Disposition"))
+ set_disposition_bits(s, str_value, stream_id_plus1 - 1);
}
}
diff --git a/libavformat/nutenc.c b/libavformat/nutenc.c
index de5ae6b..0ec4b1f 100644
--- a/libavformat/nutenc.c
+++ b/libavformat/nutenc.c
@@ -472,6 +472,37 @@ static int write_globalinfo(NUTContext *nut, ByteIOContext *bc){
return 0;
}
+static int write_streaminfo(NUTContext *nut, ByteIOContext *bc, int stream_id){
+ AVFormatContext *s= nut->avf;
+ AVStream* st = s->streams[stream_id];
+ ByteIOContext *dyn_bc;
+ uint8_t *dyn_buf=NULL;
+ int count=0, dyn_size, i;
+ int ret = url_open_dyn_buf(&dyn_bc);
+ if(ret < 0)
+ return ret;
+
+ for (i=0; ff_nut_dispositions[i].flag; ++i) {
+ if (st->disposition & ff_nut_dispositions[i].flag)
+ count += add_info(dyn_bc, "Disposition", ff_nut_dispositions[i].str);
+ }
+ dyn_size = url_close_dyn_buf(dyn_bc, &dyn_buf);
+
+ if (count) {
+ put_v(bc, stream_id + 1); //stream_id_plus1
+ put_v(bc, 0); //chapter_id
+ put_v(bc, 0); //timestamp_start
+ put_v(bc, 0); //length
+
+ put_v(bc, count);
+
+ put_buffer(bc, dyn_buf, dyn_size);
+ }
+
+ av_free(dyn_buf);
+ return count;
+}
+
static int write_headers(NUTContext *nut, ByteIOContext *bc){
ByteIOContext *dyn_bc;
int i, ret;
@@ -498,6 +529,22 @@ static int write_headers(NUTContext *nut, ByteIOContext *bc){
write_globalinfo(nut, dyn_bc);
put_packet(nut, bc, dyn_bc, 1, INFO_STARTCODE);
+ for (i = 0; i < nut->avf->nb_streams; i++) {
+ ret = url_open_dyn_buf(&dyn_bc);
+ if(ret < 0)
+ return ret;
+ ret = write_streaminfo(nut, dyn_bc, i);
+ if (ret < 0)
+ return ret;
+ if (ret > 0)
+ put_packet(nut, bc, dyn_bc, 1, INFO_STARTCODE);
+ else {
+ uint8_t* buf;
+ url_close_dyn_buf(dyn_bc, &buf);
+ av_free(buf);
+ }
+ }
+
nut->last_syncpoint_pos= INT_MIN;
nut->header_count++;
return 0;
--
Libav/FFmpeg packaging
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