mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-11-26 19:01:44 +02:00
mpeg: K&R formatting cosmetics
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
This commit is contained in:
parent
f51d0f39c0
commit
5b8f0a5eac
@ -31,72 +31,89 @@
|
||||
|
||||
#define MAX_SYNC_SIZE 100000
|
||||
|
||||
static int check_pes(uint8_t *p, uint8_t *end){
|
||||
static int check_pes(uint8_t *p, uint8_t *end)
|
||||
{
|
||||
int pes1;
|
||||
int pes2= (p[3] & 0xC0) == 0x80
|
||||
&& (p[4] & 0xC0) != 0x40
|
||||
&&((p[4] & 0xC0) == 0x00 || (p[4]&0xC0)>>2 == (p[6]&0xF0));
|
||||
int pes2 = (p[3] & 0xC0) == 0x80 &&
|
||||
(p[4] & 0xC0) != 0x40 &&
|
||||
((p[4] & 0xC0) == 0x00 ||
|
||||
(p[4] & 0xC0) >> 2 == (p[6] & 0xF0));
|
||||
|
||||
for(p+=3; p<end && *p == 0xFF; p++);
|
||||
if((*p&0xC0) == 0x40) p+=2;
|
||||
if((*p&0xF0) == 0x20){
|
||||
pes1= p[0]&p[2]&p[4]&1;
|
||||
}else if((*p&0xF0) == 0x30){
|
||||
pes1= p[0]&p[2]&p[4]&p[5]&p[7]&p[9]&1;
|
||||
}else
|
||||
for (p += 3; p < end && *p == 0xFF; p++) ;
|
||||
if ((*p & 0xC0) == 0x40)
|
||||
p += 2;
|
||||
|
||||
if ((*p & 0xF0) == 0x20)
|
||||
pes1 = p[0] & p[2] & p[4] & 1;
|
||||
else if ((*p & 0xF0) == 0x30)
|
||||
pes1 = p[0] & p[2] & p[4] & p[5] & p[7] & p[9] & 1;
|
||||
else
|
||||
pes1 = *p == 0x0F;
|
||||
|
||||
return pes1||pes2;
|
||||
return pes1 || pes2;
|
||||
}
|
||||
|
||||
static int check_pack_header(const uint8_t *buf) {
|
||||
static int check_pack_header(const uint8_t *buf)
|
||||
{
|
||||
return (buf[1] & 0xC0) == 0x40 || (buf[1] & 0xF0) == 0x20;
|
||||
}
|
||||
|
||||
static int mpegps_probe(AVProbeData *p)
|
||||
{
|
||||
uint32_t code= -1;
|
||||
int sys=0, pspack=0, priv1=0, vid=0, audio=0, invalid=0;
|
||||
uint32_t code = -1;
|
||||
int i;
|
||||
int score=0;
|
||||
int sys = 0, pspack = 0, priv1 = 0, vid = 0;
|
||||
int audio = 0, invalid = 0, score = 0;
|
||||
|
||||
for(i=0; i<p->buf_size; i++){
|
||||
code = (code<<8) + p->buf[i];
|
||||
for (i = 0; i < p->buf_size; i++) {
|
||||
code = (code << 8) + p->buf[i];
|
||||
if ((code & 0xffffff00) == 0x100) {
|
||||
int len= p->buf[i+1] << 8 | p->buf[i+2];
|
||||
int pes= check_pes(p->buf+i, p->buf+p->buf_size);
|
||||
int pack = check_pack_header(p->buf+i);
|
||||
int len = p->buf[i + 1] << 8 | p->buf[i + 2];
|
||||
int pes = check_pes(p->buf + i, p->buf + p->buf_size);
|
||||
int pack = check_pack_header(p->buf + i);
|
||||
|
||||
if(code == SYSTEM_HEADER_START_CODE) sys++;
|
||||
else if(code == PACK_START_CODE && pack) pspack++;
|
||||
else if((code & 0xf0) == VIDEO_ID && pes) vid++;
|
||||
if (code == SYSTEM_HEADER_START_CODE)
|
||||
sys++;
|
||||
else if (code == PACK_START_CODE && pack)
|
||||
pspack++;
|
||||
else if ((code & 0xf0) == VIDEO_ID && pes)
|
||||
vid++;
|
||||
// skip pes payload to avoid start code emulation for private
|
||||
// and audio streams
|
||||
else if((code & 0xe0) == AUDIO_ID && pes) {audio++; i+=len;}
|
||||
else if(code == PRIVATE_STREAM_1 && pes) {priv1++; i+=len;}
|
||||
|
||||
else if((code & 0xf0) == VIDEO_ID && !pes) invalid++;
|
||||
else if((code & 0xe0) == AUDIO_ID && !pes) invalid++;
|
||||
else if(code == PRIVATE_STREAM_1 && !pes) invalid++;
|
||||
else if ((code & 0xe0) == AUDIO_ID && pes) {
|
||||
audio++;
|
||||
i += len;
|
||||
} else if (code == PRIVATE_STREAM_1 && pes) {
|
||||
priv1++;
|
||||
i += len;
|
||||
} else if ((code & 0xf0) == VIDEO_ID && !pes)
|
||||
invalid++;
|
||||
else if ((code & 0xe0) == AUDIO_ID && !pes)
|
||||
invalid++;
|
||||
else if (code == PRIVATE_STREAM_1 && !pes)
|
||||
invalid++;
|
||||
}
|
||||
}
|
||||
|
||||
if(vid+audio > invalid) /* invalid VDR files nd short PES streams */
|
||||
if (vid + audio > invalid) /* invalid VDR files nd short PES streams */
|
||||
score = AVPROBE_SCORE_EXTENSION / 2;
|
||||
|
||||
if(sys>invalid && sys*9 <= pspack*10)
|
||||
return pspack > 2 ? AVPROBE_SCORE_EXTENSION + 2 : AVPROBE_SCORE_EXTENSION / 2; // 1 more than .mpg
|
||||
if(pspack > invalid && (priv1+vid+audio)*10 >= pspack*9)
|
||||
return pspack > 2 ? AVPROBE_SCORE_EXTENSION + 2 : AVPROBE_SCORE_EXTENSION / 2; // 1 more than .mpg
|
||||
if((!!vid ^ !!audio) && (audio > 4 || vid > 1) && !sys && !pspack && p->buf_size>2048 && vid + audio > invalid) /* PES stream */
|
||||
return (audio > 12 || vid > 3) ? AVPROBE_SCORE_EXTENSION + 2 : AVPROBE_SCORE_EXTENSION / 2;
|
||||
if (sys > invalid && sys * 9 <= pspack * 10)
|
||||
return pspack > 2 ? AVPROBE_SCORE_EXTENSION + 2
|
||||
: AVPROBE_SCORE_EXTENSION / 2; // 1 more than .mpg
|
||||
if (pspack > invalid && (priv1 + vid + audio) * 10 >= pspack * 9)
|
||||
return pspack > 2 ? AVPROBE_SCORE_EXTENSION + 2
|
||||
: AVPROBE_SCORE_EXTENSION / 2; // 1 more than .mpg
|
||||
if ((!!vid ^ !!audio) && (audio > 4 || vid > 1) && !sys &&
|
||||
!pspack && p->buf_size > 2048 && vid + audio > invalid) /* PES stream */
|
||||
return (audio > 12 || vid > 3) ? AVPROBE_SCORE_EXTENSION + 2
|
||||
: AVPROBE_SCORE_EXTENSION / 2;
|
||||
|
||||
//02-Penguin.flac has sys:0 priv1:0 pspack:0 vid:0 audio:1
|
||||
//mp3_misidentified_2.mp3 has sys:0 priv1:0 pspack:0 vid:0 audio:6
|
||||
// 02-Penguin.flac has sys:0 priv1:0 pspack:0 vid:0 audio:1
|
||||
// mp3_misidentified_2.mp3 has sys:0 priv1:0 pspack:0 vid:0 audio:6
|
||||
return score;
|
||||
}
|
||||
|
||||
|
||||
typedef struct MpegDemuxContext {
|
||||
int32_t header_state;
|
||||
unsigned char psm_es_type[256];
|
||||
@ -106,11 +123,11 @@ typedef struct MpegDemuxContext {
|
||||
static int mpegps_read_header(AVFormatContext *s)
|
||||
{
|
||||
MpegDemuxContext *m = s->priv_data;
|
||||
const char *sofdec = "Sofdec";
|
||||
const char *sofdec = "Sofdec";
|
||||
int v, i = 0;
|
||||
|
||||
m->header_state = 0xff;
|
||||
s->ctx_flags |= AVFMTCTX_NOHEADER;
|
||||
s->ctx_flags |= AVFMTCTX_NOHEADER;
|
||||
|
||||
m->sofdec = -1;
|
||||
do {
|
||||
@ -129,8 +146,8 @@ static int64_t get_pts(AVIOContext *pb, int c)
|
||||
{
|
||||
uint8_t buf[5];
|
||||
|
||||
buf[0] = c<0 ? avio_r8(pb) : c;
|
||||
avio_read(pb, buf+1, 4);
|
||||
buf[0] = c < 0 ? avio_r8(pb) : c;
|
||||
avio_read(pb, buf + 1, 4);
|
||||
|
||||
return ff_parse_pes_pts(buf);
|
||||
}
|
||||
@ -142,7 +159,7 @@ static int find_next_start_code(AVIOContext *pb, int *size_ptr,
|
||||
int val, n;
|
||||
|
||||
state = *header_state;
|
||||
n = *size_ptr;
|
||||
n = *size_ptr;
|
||||
while (n > 0) {
|
||||
if (pb->eof_reached)
|
||||
break;
|
||||
@ -150,15 +167,16 @@ static int find_next_start_code(AVIOContext *pb, int *size_ptr,
|
||||
n--;
|
||||
if (state == 0x000001) {
|
||||
state = ((state << 8) | v) & 0xffffff;
|
||||
val = state;
|
||||
val = state;
|
||||
goto found;
|
||||
}
|
||||
state = ((state << 8) | v) & 0xffffff;
|
||||
}
|
||||
val = -1;
|
||||
found:
|
||||
|
||||
found:
|
||||
*header_state = state;
|
||||
*size_ptr = n;
|
||||
*size_ptr = n;
|
||||
return val;
|
||||
}
|
||||
|
||||
@ -182,10 +200,11 @@ static long mpegps_psm_parse(MpegDemuxContext *m, AVIOContext *pb)
|
||||
es_map_length = avio_rb16(pb);
|
||||
|
||||
/* at least one es available? */
|
||||
while (es_map_length >= 4){
|
||||
while (es_map_length >= 4) {
|
||||
unsigned char type = avio_r8(pb);
|
||||
unsigned char es_id = avio_r8(pb);
|
||||
uint16_t es_info_length = avio_rb16(pb);
|
||||
|
||||
/* remember mapping from stream id to stream type */
|
||||
m->psm_es_type[es_id] = type;
|
||||
/* skip program_stream_info */
|
||||
@ -197,7 +216,7 @@ static long mpegps_psm_parse(MpegDemuxContext *m, AVIOContext *pb)
|
||||
}
|
||||
|
||||
/* read the next PES header. Return its position in ppos
|
||||
(if not NULL), and its start code, pts and dts.
|
||||
* (if not NULL), and its start code, pts and dts.
|
||||
*/
|
||||
static int mpegps_read_pes_header(AVFormatContext *s,
|
||||
int64_t *ppos, int *pstart_code,
|
||||
@ -207,20 +226,20 @@ static int mpegps_read_pes_header(AVFormatContext *s,
|
||||
int len, size, startcode, c, flags, header_len;
|
||||
int pes_ext, ext2_len, id_ext, skip;
|
||||
int64_t pts, dts;
|
||||
int64_t last_sync= avio_tell(s->pb);
|
||||
int64_t last_sync = avio_tell(s->pb);
|
||||
|
||||
error_redo:
|
||||
avio_seek(s->pb, last_sync, SEEK_SET);
|
||||
redo:
|
||||
/* next start code (should be immediately after) */
|
||||
m->header_state = 0xff;
|
||||
size = MAX_SYNC_SIZE;
|
||||
startcode = find_next_start_code(s->pb, &size, &m->header_state);
|
||||
last_sync = avio_tell(s->pb);
|
||||
if (startcode < 0){
|
||||
if(s->pb->eof_reached)
|
||||
error_redo:
|
||||
avio_seek(s->pb, last_sync, SEEK_SET);
|
||||
redo:
|
||||
/* next start code (should be immediately after) */
|
||||
m->header_state = 0xff;
|
||||
size = MAX_SYNC_SIZE;
|
||||
startcode = find_next_start_code(s->pb, &size, &m->header_state);
|
||||
last_sync = avio_tell(s->pb);
|
||||
if (startcode < 0) {
|
||||
if (s->pb->eof_reached)
|
||||
return AVERROR_EOF;
|
||||
//FIXME we should remember header_state
|
||||
// FIXME we should remember header_state
|
||||
return AVERROR(EAGAIN);
|
||||
}
|
||||
|
||||
@ -266,7 +285,7 @@ static int mpegps_read_pes_header(AVFormatContext *s,
|
||||
pts =
|
||||
dts = AV_NOPTS_VALUE;
|
||||
/* stuffing */
|
||||
for(;;) {
|
||||
for (;;) {
|
||||
if (len < 1)
|
||||
goto error_redo;
|
||||
c = avio_r8(s->pb);
|
||||
@ -278,45 +297,47 @@ static int mpegps_read_pes_header(AVFormatContext *s,
|
||||
if ((c & 0xc0) == 0x40) {
|
||||
/* buffer scale & size */
|
||||
avio_r8(s->pb);
|
||||
c = avio_r8(s->pb);
|
||||
c = avio_r8(s->pb);
|
||||
len -= 2;
|
||||
}
|
||||
if ((c & 0xe0) == 0x20) {
|
||||
dts = pts = get_pts(s->pb, c);
|
||||
dts =
|
||||
pts = get_pts(s->pb, c);
|
||||
len -= 4;
|
||||
if (c & 0x10){
|
||||
dts = get_pts(s->pb, -1);
|
||||
if (c & 0x10) {
|
||||
dts = get_pts(s->pb, -1);
|
||||
len -= 5;
|
||||
}
|
||||
} else if ((c & 0xc0) == 0x80) {
|
||||
/* mpeg 2 PES */
|
||||
flags = avio_r8(s->pb);
|
||||
flags = avio_r8(s->pb);
|
||||
header_len = avio_r8(s->pb);
|
||||
len -= 2;
|
||||
len -= 2;
|
||||
if (header_len > len)
|
||||
goto error_redo;
|
||||
len -= header_len;
|
||||
if (flags & 0x80) {
|
||||
dts = pts = get_pts(s->pb, -1);
|
||||
dts = pts = get_pts(s->pb, -1);
|
||||
header_len -= 5;
|
||||
if (flags & 0x40) {
|
||||
dts = get_pts(s->pb, -1);
|
||||
dts = get_pts(s->pb, -1);
|
||||
header_len -= 5;
|
||||
}
|
||||
}
|
||||
if (flags & 0x3f && header_len == 0){
|
||||
if (flags & 0x3f && header_len == 0) {
|
||||
flags &= 0xC0;
|
||||
av_log(s, AV_LOG_WARNING, "Further flags set but no bytes left\n");
|
||||
}
|
||||
if (flags & 0x01) { /* PES extension */
|
||||
pes_ext = avio_r8(s->pb);
|
||||
header_len--;
|
||||
/* Skip PES private data, program packet sequence counter and P-STD buffer */
|
||||
skip = (pes_ext >> 4) & 0xb;
|
||||
/* Skip PES private data, program packet sequence counter
|
||||
* and P-STD buffer */
|
||||
skip = (pes_ext >> 4) & 0xb;
|
||||
skip += skip & 0x9;
|
||||
if (pes_ext & 0x40 || skip > header_len){
|
||||
if (pes_ext & 0x40 || skip > header_len) {
|
||||
av_log(s, AV_LOG_WARNING, "pes_ext %X is invalid\n", pes_ext);
|
||||
pes_ext=skip=0;
|
||||
pes_ext = skip = 0;
|
||||
}
|
||||
avio_skip(s->pb, skip);
|
||||
header_len -= skip;
|
||||
@ -332,11 +353,10 @@ static int mpegps_read_pes_header(AVFormatContext *s,
|
||||
}
|
||||
}
|
||||
}
|
||||
if(header_len < 0)
|
||||
if (header_len < 0)
|
||||
goto error_redo;
|
||||
avio_skip(s->pb, header_len);
|
||||
}
|
||||
else if( c!= 0xf )
|
||||
} else if (c != 0xf)
|
||||
goto redo;
|
||||
|
||||
if (startcode == PRIVATE_STREAM_1 && !m->psm_es_type[startcode & 0xff]) {
|
||||
@ -355,22 +375,23 @@ static int mpegps_read_pes_header(AVFormatContext *s,
|
||||
}
|
||||
}
|
||||
}
|
||||
if(len<0)
|
||||
if (len < 0)
|
||||
goto error_redo;
|
||||
if(dts != AV_NOPTS_VALUE && ppos){
|
||||
if (dts != AV_NOPTS_VALUE && ppos) {
|
||||
int i;
|
||||
for(i=0; i<s->nb_streams; i++){
|
||||
if(startcode == s->streams[i]->id &&
|
||||
s->pb->seekable /* index useless on streams anyway */) {
|
||||
for (i = 0; i < s->nb_streams; i++) {
|
||||
if (startcode == s->streams[i]->id &&
|
||||
s->pb->seekable /* index useless on streams anyway */) {
|
||||
ff_reduce_index(s, i);
|
||||
av_add_index_entry(s->streams[i], *ppos, dts, 0, 0, AVINDEX_KEYFRAME /* FIXME keyframe? */);
|
||||
av_add_index_entry(s->streams[i], *ppos, dts, 0, 0,
|
||||
AVINDEX_KEYFRAME /* FIXME keyframe? */);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
*pstart_code = startcode;
|
||||
*ppts = pts;
|
||||
*pdts = dts;
|
||||
*ppts = pts;
|
||||
*pdts = dts;
|
||||
return len;
|
||||
}
|
||||
|
||||
@ -382,106 +403,111 @@ static int mpegps_read_packet(AVFormatContext *s,
|
||||
int len, startcode, i, es_type, ret;
|
||||
enum AVCodecID codec_id = AV_CODEC_ID_NONE;
|
||||
enum AVMediaType type;
|
||||
int64_t pts, dts, dummy_pos; //dummy_pos is needed for the index building to work
|
||||
int64_t pts, dts, dummy_pos; // dummy_pos is needed for the index building to work
|
||||
uint8_t av_uninit(dvdaudio_substream_type);
|
||||
|
||||
redo:
|
||||
redo:
|
||||
len = mpegps_read_pes_header(s, &dummy_pos, &startcode, &pts, &dts);
|
||||
if (len < 0)
|
||||
return len;
|
||||
|
||||
if(startcode == 0x1bd) {
|
||||
if (startcode == 0x1bd) {
|
||||
dvdaudio_substream_type = avio_r8(s->pb);
|
||||
avio_skip(s->pb, 3);
|
||||
len -= 4;
|
||||
}
|
||||
|
||||
/* now find stream */
|
||||
for(i=0;i<s->nb_streams;i++) {
|
||||
for (i = 0; i < s->nb_streams; i++) {
|
||||
st = s->streams[i];
|
||||
if (st->id == startcode)
|
||||
goto found;
|
||||
}
|
||||
|
||||
es_type = m->psm_es_type[startcode & 0xff];
|
||||
if(es_type > 0 && es_type != STREAM_TYPE_PRIVATE_DATA){
|
||||
if(es_type == STREAM_TYPE_VIDEO_MPEG1){
|
||||
if (es_type > 0 && es_type != STREAM_TYPE_PRIVATE_DATA) {
|
||||
if (es_type == STREAM_TYPE_VIDEO_MPEG1) {
|
||||
codec_id = AV_CODEC_ID_MPEG2VIDEO;
|
||||
type = AVMEDIA_TYPE_VIDEO;
|
||||
} else if(es_type == STREAM_TYPE_VIDEO_MPEG2){
|
||||
type = AVMEDIA_TYPE_VIDEO;
|
||||
} else if (es_type == STREAM_TYPE_VIDEO_MPEG2) {
|
||||
codec_id = AV_CODEC_ID_MPEG2VIDEO;
|
||||
type = AVMEDIA_TYPE_VIDEO;
|
||||
} else if(es_type == STREAM_TYPE_AUDIO_MPEG1 ||
|
||||
es_type == STREAM_TYPE_AUDIO_MPEG2){
|
||||
type = AVMEDIA_TYPE_VIDEO;
|
||||
} else if (es_type == STREAM_TYPE_AUDIO_MPEG1 ||
|
||||
es_type == STREAM_TYPE_AUDIO_MPEG2) {
|
||||
codec_id = AV_CODEC_ID_MP3;
|
||||
type = AVMEDIA_TYPE_AUDIO;
|
||||
} else if(es_type == STREAM_TYPE_AUDIO_AAC){
|
||||
type = AVMEDIA_TYPE_AUDIO;
|
||||
} else if (es_type == STREAM_TYPE_AUDIO_AAC) {
|
||||
codec_id = AV_CODEC_ID_AAC;
|
||||
type = AVMEDIA_TYPE_AUDIO;
|
||||
} else if(es_type == STREAM_TYPE_VIDEO_MPEG4){
|
||||
type = AVMEDIA_TYPE_AUDIO;
|
||||
} else if (es_type == STREAM_TYPE_VIDEO_MPEG4) {
|
||||
codec_id = AV_CODEC_ID_MPEG4;
|
||||
type = AVMEDIA_TYPE_VIDEO;
|
||||
} else if(es_type == STREAM_TYPE_VIDEO_H264){
|
||||
type = AVMEDIA_TYPE_VIDEO;
|
||||
} else if (es_type == STREAM_TYPE_VIDEO_H264) {
|
||||
codec_id = AV_CODEC_ID_H264;
|
||||
type = AVMEDIA_TYPE_VIDEO;
|
||||
} else if(es_type == STREAM_TYPE_AUDIO_AC3){
|
||||
type = AVMEDIA_TYPE_VIDEO;
|
||||
} else if (es_type == STREAM_TYPE_AUDIO_AC3) {
|
||||
codec_id = AV_CODEC_ID_AC3;
|
||||
type = AVMEDIA_TYPE_AUDIO;
|
||||
type = AVMEDIA_TYPE_AUDIO;
|
||||
} else {
|
||||
goto skip;
|
||||
}
|
||||
} else if (startcode >= 0x1e0 && startcode <= 0x1ef) {
|
||||
static const unsigned char avs_seqh[4] = { 0, 0, 1, 0xb0 };
|
||||
unsigned char buf[8];
|
||||
|
||||
avio_read(s->pb, buf, 8);
|
||||
avio_seek(s->pb, -8, SEEK_CUR);
|
||||
if(!memcmp(buf, avs_seqh, 4) && (buf[6] != 0 || buf[7] != 1))
|
||||
if (!memcmp(buf, avs_seqh, 4) && (buf[6] != 0 || buf[7] != 1))
|
||||
codec_id = AV_CODEC_ID_CAVS;
|
||||
else
|
||||
codec_id = AV_CODEC_ID_PROBE;
|
||||
type = AVMEDIA_TYPE_VIDEO;
|
||||
} else if (startcode >= 0x1c0 && startcode <= 0x1df) {
|
||||
type = AVMEDIA_TYPE_AUDIO;
|
||||
type = AVMEDIA_TYPE_AUDIO;
|
||||
codec_id = m->sofdec > 0 ? AV_CODEC_ID_ADPCM_ADX : AV_CODEC_ID_MP2;
|
||||
} else if (startcode >= 0x80 && startcode <= 0x87) {
|
||||
type = AVMEDIA_TYPE_AUDIO;
|
||||
type = AVMEDIA_TYPE_AUDIO;
|
||||
codec_id = AV_CODEC_ID_AC3;
|
||||
} else if ( ( startcode >= 0x88 && startcode <= 0x8f)
|
||||
||( startcode >= 0x98 && startcode <= 0x9f)) {
|
||||
} else if ((startcode >= 0x88 && startcode <= 0x8f) ||
|
||||
(startcode >= 0x98 && startcode <= 0x9f)) {
|
||||
/* 0x90 - 0x97 is reserved for SDDS in DVD specs */
|
||||
type = AVMEDIA_TYPE_AUDIO;
|
||||
type = AVMEDIA_TYPE_AUDIO;
|
||||
codec_id = AV_CODEC_ID_DTS;
|
||||
} else if (startcode >= 0xa0 && startcode <= 0xaf) {
|
||||
type = AVMEDIA_TYPE_AUDIO;
|
||||
type = AVMEDIA_TYPE_AUDIO;
|
||||
codec_id = AV_CODEC_ID_PCM_DVD;
|
||||
} else if (startcode >= 0xb0 && startcode <= 0xbf) {
|
||||
type = AVMEDIA_TYPE_AUDIO;
|
||||
type = AVMEDIA_TYPE_AUDIO;
|
||||
codec_id = AV_CODEC_ID_TRUEHD;
|
||||
} else if (startcode >= 0xc0 && startcode <= 0xcf) {
|
||||
/* Used for both AC-3 and E-AC-3 in EVOB files */
|
||||
type = AVMEDIA_TYPE_AUDIO;
|
||||
type = AVMEDIA_TYPE_AUDIO;
|
||||
codec_id = AV_CODEC_ID_AC3;
|
||||
} else if (startcode >= 0x20 && startcode <= 0x3f) {
|
||||
type = AVMEDIA_TYPE_SUBTITLE;
|
||||
type = AVMEDIA_TYPE_SUBTITLE;
|
||||
codec_id = AV_CODEC_ID_DVD_SUBTITLE;
|
||||
} else if (startcode >= 0xfd55 && startcode <= 0xfd5f) {
|
||||
type = AVMEDIA_TYPE_VIDEO;
|
||||
type = AVMEDIA_TYPE_VIDEO;
|
||||
codec_id = AV_CODEC_ID_VC1;
|
||||
} else if (startcode == 0x1bd) {
|
||||
// check dvd audio substream type
|
||||
type = AVMEDIA_TYPE_AUDIO;
|
||||
switch(dvdaudio_substream_type & 0xe0) {
|
||||
case 0xa0: codec_id = AV_CODEC_ID_PCM_DVD;
|
||||
break;
|
||||
case 0x80: if((dvdaudio_substream_type & 0xf8) == 0x88)
|
||||
codec_id = AV_CODEC_ID_DTS;
|
||||
else codec_id = AV_CODEC_ID_AC3;
|
||||
break;
|
||||
default: av_log(s, AV_LOG_ERROR, "Unknown 0x1bd sub-stream\n");
|
||||
goto skip;
|
||||
switch (dvdaudio_substream_type & 0xe0) {
|
||||
case 0xa0:
|
||||
codec_id = AV_CODEC_ID_PCM_DVD;
|
||||
break;
|
||||
case 0x80:
|
||||
if ((dvdaudio_substream_type & 0xf8) == 0x88)
|
||||
codec_id = AV_CODEC_ID_DTS;
|
||||
else
|
||||
codec_id = AV_CODEC_ID_AC3;
|
||||
break;
|
||||
default:
|
||||
av_log(s, AV_LOG_ERROR, "Unknown 0x1bd sub-stream\n");
|
||||
goto skip;
|
||||
}
|
||||
} else {
|
||||
skip:
|
||||
skip:
|
||||
/* skip packet */
|
||||
avio_skip(s->pb, len);
|
||||
goto redo;
|
||||
@ -490,17 +516,19 @@ static int mpegps_read_packet(AVFormatContext *s,
|
||||
st = avformat_new_stream(s, NULL);
|
||||
if (!st)
|
||||
goto skip;
|
||||
st->id = startcode;
|
||||
st->id = startcode;
|
||||
st->codec->codec_type = type;
|
||||
st->codec->codec_id = codec_id;
|
||||
st->need_parsing = AVSTREAM_PARSE_FULL;
|
||||
found:
|
||||
if(st->discard >= AVDISCARD_ALL)
|
||||
st->codec->codec_id = codec_id;
|
||||
st->need_parsing = AVSTREAM_PARSE_FULL;
|
||||
|
||||
found:
|
||||
if (st->discard >= AVDISCARD_ALL)
|
||||
goto skip;
|
||||
ret = av_get_packet(s->pb, pkt, len);
|
||||
pkt->pts = pts;
|
||||
pkt->dts = dts;
|
||||
pkt->pos = dummy_pos;
|
||||
|
||||
pkt->pts = pts;
|
||||
pkt->dts = dts;
|
||||
pkt->pos = dummy_pos;
|
||||
pkt->stream_index = st->index;
|
||||
av_dlog(s, "%d: pts=%0.3f dts=%0.3f size=%d\n",
|
||||
pkt->stream_index, pkt->pts / 90000.0, pkt->dts / 90000.0,
|
||||
@ -519,7 +547,7 @@ static int64_t mpegps_read_dts(AVFormatContext *s, int stream_index,
|
||||
if (avio_seek(s->pb, pos, SEEK_SET) < 0)
|
||||
return AV_NOPTS_VALUE;
|
||||
|
||||
for(;;) {
|
||||
for (;;) {
|
||||
len = mpegps_read_pes_header(s, &pos, &startcode, &pts, &dts);
|
||||
if (len < 0) {
|
||||
av_dlog(s, "none (ret=%d)\n", len);
|
||||
|
Loading…
Reference in New Issue
Block a user