7b2a2ce5 |
/*
* "Real" compatible demuxer. |
406792e7 |
* Copyright (c) 2000, 2001 Fabrice Bellard |
7b2a2ce5 |
*
* 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
*/ |
245976da |
|
d92024f1 |
#include <inttypes.h>
|
1bf50711 |
#include "libavutil/avassert.h" |
245976da |
#include "libavutil/avstring.h" |
60a58530 |
#include "libavutil/channel_layout.h" |
7950e519 |
#include "libavutil/internal.h" |
6a5d31ac |
#include "libavutil/intreadwrite.h" |
d2d67e42 |
#include "libavutil/dict.h" |
7b2a2ce5 |
#include "avformat.h" |
0780fe27 |
#include "avio_internal.h" |
c3f9ebf7 |
#include "internal.h" |
7e68c91e |
#include "rmsipr.h" |
ba614729 |
#include "rm.h" |
1edddc99 |
|
7df9e693 |
#define DEINT_ID_GENR MKTAG('g', 'e', 'n', 'r') ///< interleaving for Cooker/ATRAC |
10397215 |
#define DEINT_ID_INT0 MKTAG('I', 'n', 't', '0') ///< no interleaving needed
#define DEINT_ID_INT4 MKTAG('I', 'n', 't', '4') ///< interleaving for 28.8
#define DEINT_ID_SIPR MKTAG('s', 'i', 'p', 'r') ///< interleaving for Sipro
#define DEINT_ID_VBRF MKTAG('v', 'b', 'r', 'f') ///< VBR case for AAC
#define DEINT_ID_VBRS MKTAG('v', 'b', 'r', 's') ///< VBR case for AAC
|
ba614729 |
struct RMStream { |
0b4ff0c9 |
AVPacket pkt; ///< place to store merged video frame / reordered audio data |
1edddc99 |
int videobufsize; ///< current assembled frame size
int videobufpos; ///< position for the next slice in the video buffer
int curpic_num; ///< picture number of current frame
int cur_slice, slices;
int64_t pktpos; ///< first slice position in file
/// Audio descrambling matrix parameters
int64_t audiotimestamp; ///< Audio packet timestamp
int sub_packet_cnt; // Subpacket counter, used while reading
int sub_packet_size, sub_packet_h, coded_framesize; ///< Descrambling parameters from container |
ba614729 |
int audio_framesize; /// Audio frame size from container
int sub_packet_lengths[16]; /// Length of each subpacket |
10397215 |
int32_t deint_id; ///< deinterleaver used in audio stream |
ba614729 |
};
|
daf8cf35 |
typedef struct RMDemuxContext { |
ba614729 |
int nb_packets;
int old_format;
int current_stream;
int remaining_len; |
1edddc99 |
int audio_stream_num; ///< Stream number for audio packets
int audio_pkt_cnt; ///< Output packet counter |
35bbc195 |
int data_end; |
1edddc99 |
} RMDemuxContext; |
7b2a2ce5 |
|
aab74a38 |
static int rm_read_close(AVFormatContext *s);
|
471fe57e |
static inline void get_strl(AVIOContext *pb, char *buf, int buf_size, int len) |
7b2a2ce5 |
{ |
36cf20f5 |
int i; |
28263f5f |
char *q, r; |
7b2a2ce5 |
q = buf;
for(i=0;i<len;i++) { |
e63a3628 |
r = avio_r8(pb); |
7b2a2ce5 |
if (i < buf_size - 1) |
28263f5f |
*q++ = r; |
7b2a2ce5 |
} |
28263f5f |
if (buf_size > 0) *q = '\0'; |
7b2a2ce5 |
}
|
471fe57e |
static void get_str8(AVIOContext *pb, char *buf, int buf_size) |
36cf20f5 |
{ |
e63a3628 |
get_strl(pb, buf, buf_size, avio_r8(pb)); |
7b2a2ce5 |
}
|
6f69f7a8 |
static int rm_read_extradata(AVFormatContext *s, AVIOContext *pb, AVCodecParameters *par, unsigned size) |
0dae3e13 |
{ |
50f9de59 |
if (size >= 1<<24) { |
6f69f7a8 |
av_log(s, AV_LOG_ERROR, "extradata size %u too large\n", size); |
0dae3e13 |
return -1; |
50f9de59 |
} |
323b8c95 |
if (ff_get_extradata(s, par, pb, size) < 0) |
2874c81c |
return AVERROR(ENOMEM); |
0dae3e13 |
return 0;
}
|
bf87908c |
static void rm_read_metadata(AVFormatContext *s, AVIOContext *pb, int wide) |
7379d5bc |
{
char buf[1024];
int i; |
bf87908c |
|
7379d5bc |
for (i=0; i<FF_ARRAY_ELEMS(ff_rm_metadata); i++) { |
bf87908c |
int len = wide ? avio_rb16(pb) : avio_r8(pb);
get_strl(pb, buf, sizeof(buf), len); |
d2d67e42 |
av_dict_set(&s->metadata, ff_rm_metadata[i], buf, 0); |
7379d5bc |
}
}
|
ba614729 |
RMStream *ff_rm_alloc_rmstream (void)
{
RMStream *rms = av_mallocz(sizeof(RMStream)); |
da7e31a2 |
if (!rms)
return NULL; |
ba614729 |
rms->curpic_num = -1;
return rms;
}
void ff_rm_free_rmstream (RMStream *rms)
{ |
ce70f28a |
av_packet_unref(&rms->pkt); |
ba614729 |
}
|
471fe57e |
static int rm_read_audio_stream_info(AVFormatContext *s, AVIOContext *pb, |
886e89d0 |
AVStream *st, RMStream *ast, int read_all) |
7b2a2ce5 |
{
char buf[256];
uint32_t version; |
0dae3e13 |
int ret; |
7b2a2ce5 |
/* ra type header */ |
e63a3628 |
version = avio_rb16(pb); /* version */ |
119c61a3 |
if (version == 3) { |
76f126ba |
unsigned bytes_per_minute; |
e63a3628 |
int header_size = avio_rb16(pb); |
384c9c2f |
int64_t startpos = avio_tell(pb); |
76f126ba |
avio_skip(pb, 8);
bytes_per_minute = avio_rb16(pb);
avio_skip(pb, 4); |
bf87908c |
rm_read_metadata(s, pb, 0); |
384c9c2f |
if ((startpos + header_size) >= avio_tell(pb) + 2) { |
76f940b2 |
// fourcc (should always be "lpcJ") |
e63a3628 |
avio_r8(pb); |
76f940b2 |
get_str8(pb, buf, sizeof(buf)); |
7b2a2ce5 |
}
// Skip extra header crap (this should never happen) |
384c9c2f |
if ((startpos + header_size) > avio_tell(pb)) |
45a8a02a |
avio_skip(pb, header_size + startpos - avio_tell(pb)); |
76f126ba |
if (bytes_per_minute) |
6f69f7a8 |
st->codecpar->bit_rate = 8LL * bytes_per_minute / 60; |
9200514a |
st->codecpar->sample_rate = 8000;
st->codecpar->channels = 1;
st->codecpar->channel_layout = AV_CH_LAYOUT_MONO;
st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
st->codecpar->codec_id = AV_CODEC_ID_RA_144; |
10397215 |
ast->deint_id = DEINT_ID_INT0; |
7b2a2ce5 |
} else {
int flavor, sub_packet_h, coded_framesize, sub_packet_size; |
851ef875 |
int codecdata_length; |
2e6bd22b |
unsigned bytes_per_minute; |
7b2a2ce5 |
/* old version (4) */ |
45a8a02a |
avio_skip(pb, 2); /* unused */ |
e63a3628 |
avio_rb32(pb); /* .ra4 */
avio_rb32(pb); /* data size */
avio_rb16(pb); /* version2 */
avio_rb32(pb); /* header size */
flavor= avio_rb16(pb); /* add codec info / flavor */
ast->coded_framesize = coded_framesize = avio_rb32(pb); /* coded frame size */
avio_rb32(pb); /* ??? */ |
2e6bd22b |
bytes_per_minute = avio_rb32(pb);
if (version == 4) {
if (bytes_per_minute) |
6f69f7a8 |
st->codecpar->bit_rate = 8LL * bytes_per_minute / 60; |
2e6bd22b |
} |
e63a3628 |
avio_rb32(pb); /* ??? */
ast->sub_packet_h = sub_packet_h = avio_rb16(pb); /* 1 */ |
9200514a |
st->codecpar->block_align= avio_rb16(pb); /* frame size */ |
e63a3628 |
ast->sub_packet_size = sub_packet_size = avio_rb16(pb); /* sub packet size */
avio_rb16(pb); /* ??? */ |
119c61a3 |
if (version == 5) { |
e63a3628 |
avio_rb16(pb); avio_rb16(pb); avio_rb16(pb); |
127ed7b0 |
} |
9200514a |
st->codecpar->sample_rate = avio_rb16(pb); |
e63a3628 |
avio_rb32(pb); |
9200514a |
st->codecpar->channels = avio_rb16(pb); |
119c61a3 |
if (version == 5) { |
10397215 |
ast->deint_id = avio_rl32(pb); |
e63a3628 |
avio_read(pb, buf, 4); |
7b2a2ce5 |
buf[4] = 0;
} else { |
b797a00f |
AV_WL32(buf, 0); |
7b2a2ce5 |
get_str8(pb, buf, sizeof(buf)); /* desc */ |
10397215 |
ast->deint_id = AV_RL32(buf); |
7b2a2ce5 |
get_str8(pb, buf, sizeof(buf)); /* desc */
} |
9200514a |
st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
st->codecpar->codec_tag = AV_RL32(buf);
st->codecpar->codec_id = ff_codec_get_id(ff_rm_codec_tags,
st->codecpar->codec_tag); |
10397215 |
|
9200514a |
switch (st->codecpar->codec_id) { |
36ef5369 |
case AV_CODEC_ID_AC3: |
bf415121 |
st->need_parsing = AVSTREAM_PARSE_FULL; |
461ef741 |
break; |
36ef5369 |
case AV_CODEC_ID_RA_288: |
9200514a |
st->codecpar->extradata_size= 0; |
0219dc6c |
av_freep(&st->codecpar->extradata); |
9200514a |
ast->audio_framesize = st->codecpar->block_align;
st->codecpar->block_align = coded_framesize; |
461ef741 |
break; |
36ef5369 |
case AV_CODEC_ID_COOK: |
b0e9edc4 |
st->need_parsing = AVSTREAM_PARSE_HEADERS; |
36ef5369 |
case AV_CODEC_ID_ATRAC3:
case AV_CODEC_ID_SIPR: |
00a62e67 |
if (read_all) {
codecdata_length = 0;
} else { |
d687b8c8 |
avio_rb16(pb); avio_r8(pb);
if (version == 5)
avio_r8(pb);
codecdata_length = avio_rb32(pb); |
29d147c9 |
if(codecdata_length + AV_INPUT_BUFFER_PADDING_SIZE <= (unsigned)codecdata_length){ |
d687b8c8 |
av_log(s, AV_LOG_ERROR, "codecdata_length too large\n");
return -1;
} |
00a62e67 |
} |
7b2a2ce5 |
|
9200514a |
ast->audio_framesize = st->codecpar->block_align;
if (st->codecpar->codec_id == AV_CODEC_ID_SIPR) { |
cf16c17a |
if (flavor > 3) {
av_log(s, AV_LOG_ERROR, "bad SIPR file flavor %d\n",
flavor);
return -1;
} |
9200514a |
st->codecpar->block_align = ff_sipr_subpk_size[flavor]; |
40cf9437 |
st->need_parsing = AVSTREAM_PARSE_FULL_RAW; |
cf16c17a |
} else {
if(sub_packet_size <= 0){
av_log(s, AV_LOG_ERROR, "sub_packet_size is invalid\n");
return -1;
} |
9200514a |
st->codecpar->block_align = ast->sub_packet_size; |
cf16c17a |
} |
6f69f7a8 |
if ((ret = rm_read_extradata(s, pb, st->codecpar, codecdata_length)) < 0) |
0dae3e13 |
return ret; |
7b2a2ce5 |
|
461ef741 |
break; |
36ef5369 |
case AV_CODEC_ID_AAC: |
e63a3628 |
avio_rb16(pb); avio_r8(pb); |
119c61a3 |
if (version == 5) |
e63a3628 |
avio_r8(pb);
codecdata_length = avio_rb32(pb); |
059a9348 |
if(codecdata_length + AV_INPUT_BUFFER_PADDING_SIZE <= (unsigned)codecdata_length){ |
7b2a2ce5 |
av_log(s, AV_LOG_ERROR, "codecdata_length too large\n");
return -1;
}
if (codecdata_length >= 1) { |
e63a3628 |
avio_r8(pb); |
6f69f7a8 |
if ((ret = rm_read_extradata(s, pb, st->codecpar, codecdata_length - 1)) < 0) |
0dae3e13 |
return ret; |
7b2a2ce5 |
} |
461ef741 |
break; |
7b2a2ce5 |
} |
f06068bb |
switch (ast->deint_id) {
case DEINT_ID_INT4:
if (ast->coded_framesize > ast->audio_framesize || |
e30b3e59 |
sub_packet_h <= 1 || |
f06068bb |
ast->coded_framesize * sub_packet_h > (2 + (sub_packet_h & 1)) * ast->audio_framesize)
return AVERROR_INVALIDDATA; |
4e394a98 |
if (ast->coded_framesize * sub_packet_h != 2*ast->audio_framesize) {
avpriv_request_sample(s, "mismatching interleaver parameters");
return AVERROR_INVALIDDATA;
} |
f06068bb |
break;
case DEINT_ID_GENR:
if (ast->sub_packet_size <= 0 ||
ast->sub_packet_size > ast->audio_framesize)
return AVERROR_INVALIDDATA; |
ed1eb960 |
if (ast->audio_framesize % ast->sub_packet_size)
return AVERROR_INVALIDDATA; |
f06068bb |
break;
case DEINT_ID_SIPR:
case DEINT_ID_INT0:
case DEINT_ID_VBRS:
case DEINT_ID_VBRF:
break;
default: |
28ee7757 |
av_log(s, AV_LOG_ERROR ,"Unknown interleaver %"PRIX32"\n", ast->deint_id); |
f06068bb |
return AVERROR_INVALIDDATA;
} |
165f96cd |
if (ast->deint_id == DEINT_ID_INT4 ||
ast->deint_id == DEINT_ID_GENR ||
ast->deint_id == DEINT_ID_SIPR) { |
6f69f7a8 |
if (st->codecpar->block_align <= 0 || |
165f96cd |
ast->audio_framesize * sub_packet_h > (unsigned)INT_MAX || |
6f69f7a8 |
ast->audio_framesize * sub_packet_h < st->codecpar->block_align) |
165f96cd |
return AVERROR_INVALIDDATA;
if (av_new_packet(&ast->pkt, ast->audio_framesize * sub_packet_h) < 0)
return AVERROR(ENOMEM);
} |
f06068bb |
|
7b2a2ce5 |
if (read_all) { |
e63a3628 |
avio_r8(pb);
avio_r8(pb);
avio_r8(pb); |
bf87908c |
rm_read_metadata(s, pb, 0); |
7b2a2ce5 |
}
}
return 0;
}
|
1c77ead1 |
int ff_rm_read_mdpr_codecdata(AVFormatContext *s, AVIOContext *pb,
AVStream *st, RMStream *rst, |
ef2f9073 |
unsigned int codec_data_size, const uint8_t *mime) |
ff1463dc |
{
unsigned int v; |
79d5045d |
int size; |
ff1463dc |
int64_t codec_pos; |
0dae3e13 |
int ret; |
ff1463dc |
|
ef2f9073 |
if (codec_data_size > INT_MAX) |
a6f73073 |
return AVERROR_INVALIDDATA; |
df43d037 |
if (codec_data_size == 0)
return 0; |
a6f73073 |
|
c3f9ebf7 |
avpriv_set_pts_info(st, 64, 1, 1000); |
384c9c2f |
codec_pos = avio_tell(pb); |
e63a3628 |
v = avio_rb32(pb); |
ea7ebade |
|
ff1463dc |
if (v == MKTAG(0xfd, 'a', 'r', '.')) {
/* ra type header */ |
886e89d0 |
if (rm_read_audio_stream_info(s, pb, st, rst, 0)) |
ff1463dc |
return -1; |
b8560637 |
} else if (v == MKBETAG('L', 'S', 'D', ':')) {
avio_seek(pb, -4, SEEK_CUR); |
6f69f7a8 |
if ((ret = rm_read_extradata(s, pb, st->codecpar, codec_data_size)) < 0) |
b8560637 |
return ret;
|
9200514a |
st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
st->codecpar->codec_tag = AV_RL32(st->codecpar->extradata);
st->codecpar->codec_id = ff_codec_get_id(ff_rm_codec_tags, |
6f69f7a8 |
st->codecpar->codec_tag); |
62527dc2 |
} else if(mime && !strcmp(mime, "logical-fileinfo")){ |
e6dc0da5 |
int stream_count, rule_count, property_count, i; |
62527dc2 |
ff_free_stream(s, st);
if (avio_rb16(pb) != 0) {
av_log(s, AV_LOG_WARNING, "Unsupported version\n");
goto skip;
}
stream_count = avio_rb16(pb);
avio_skip(pb, 6*stream_count);
rule_count = avio_rb16(pb);
avio_skip(pb, 2*rule_count);
property_count = avio_rb16(pb);
for(i=0; i<property_count; i++){
uint8_t name[128], val[128];
avio_rb32(pb);
if (avio_rb16(pb) != 0) {
av_log(s, AV_LOG_WARNING, "Unsupported Name value property version\n");
goto skip; //FIXME skip just this one
}
get_str8(pb, name, sizeof(name));
switch(avio_rb32(pb)) {
case 2: get_strl(pb, val, sizeof(val), avio_rb16(pb));
av_dict_set(&s->metadata, name, val, 0);
break;
default: avio_skip(pb, avio_rb16(pb));
}
} |
ff1463dc |
} else { |
e65ab9d9 |
int fps; |
e63a3628 |
if (avio_rl32(pb) != MKTAG('V', 'I', 'D', 'O')) { |
ff1463dc |
fail1: |
3880b454 |
av_log(s, AV_LOG_WARNING, "Unsupported stream type %08x\n", v); |
ff1463dc |
goto skip;
} |
9200514a |
st->codecpar->codec_tag = avio_rl32(pb);
st->codecpar->codec_id = ff_codec_get_id(ff_rm_codec_tags,
st->codecpar->codec_tag); |
54904525 |
av_log(s, AV_LOG_TRACE, "%"PRIX32" %X\n",
st->codecpar->codec_tag, MKTAG('R', 'V', '2', '0')); |
9200514a |
if (st->codecpar->codec_id == AV_CODEC_ID_NONE) |
ff1463dc |
goto fail1; |
9200514a |
st->codecpar->width = avio_rb16(pb);
st->codecpar->height = avio_rb16(pb); |
a43b1e74 |
avio_skip(pb, 2); // looks like bits per sample
avio_skip(pb, 4); // always zero? |
9200514a |
st->codecpar->codec_type = AVMEDIA_TYPE_VIDEO; |
48ce8b8d |
st->need_parsing = AVSTREAM_PARSE_TIMESTAMPS; |
a43b1e74 |
fps = avio_rb32(pb); |
ff1463dc |
|
6f69f7a8 |
if ((ret = rm_read_extradata(s, pb, st->codecpar, codec_data_size - (avio_tell(pb) - codec_pos))) < 0) |
0dae3e13 |
return ret; |
ff1463dc |
|
0f310a6f |
if (fps > 0) {
av_reduce(&st->avg_frame_rate.den, &st->avg_frame_rate.num,
0x10000, fps, (1 << 30) - 1); |
aba232cf |
#if FF_API_R_FRAME_RATE |
f54d751f |
st->r_frame_rate = st->avg_frame_rate; |
aba232cf |
#endif |
0f310a6f |
} else if (s->error_recognition & AV_EF_EXPLODE) {
av_log(s, AV_LOG_ERROR, "Invalid framerate\n");
return AVERROR_INVALIDDATA;
} |
ff1463dc |
}
skip:
/* skip codec info */ |
384c9c2f |
size = avio_tell(pb) - codec_pos; |
03abf55f |
if (codec_data_size >= size) {
avio_skip(pb, codec_data_size - size);
} else {
av_log(s, AV_LOG_WARNING, "codec_data_size %u < size %d\n", codec_data_size, size);
} |
ff1463dc |
|
36c9e40a |
return 0; |
ff1463dc |
}
|
2d6f3014 |
/** this function assumes that the demuxer has already seeked to the start
* of the INDX chunk, and will bail out if not. */
static int rm_read_index(AVFormatContext *s)
{ |
471fe57e |
AVIOContext *pb = s->pb; |
2d6f3014 |
unsigned int size, n_pkts, str_id, next_off, n, pos, pts;
AVStream *st;
do { |
e63a3628 |
if (avio_rl32(pb) != MKTAG('I','N','D','X')) |
2d6f3014 |
return -1; |
e63a3628 |
size = avio_rb32(pb); |
2d6f3014 |
if (size < 20)
return -1; |
45a8a02a |
avio_skip(pb, 2); |
e63a3628 |
n_pkts = avio_rb32(pb);
str_id = avio_rb16(pb);
next_off = avio_rb32(pb); |
2d6f3014 |
for (n = 0; n < s->nb_streams; n++)
if (s->streams[n]->id == str_id) {
st = s->streams[n];
break;
} |
aac07a7a |
if (n == s->nb_streams) {
av_log(s, AV_LOG_ERROR,
"Invalid stream index %d for index at pos %"PRId64"\n",
str_id, avio_tell(pb)); |
2d6f3014 |
goto skip; |
aac07a7a |
} else if ((avio_size(pb) - avio_tell(pb)) / 14 < n_pkts) {
av_log(s, AV_LOG_ERROR,
"Nr. of packets in packet index for stream index %d " |
41840366 |
"exceeds filesize (%"PRId64" at %"PRId64" = %"PRId64")\n", |
aac07a7a |
str_id, avio_size(pb), avio_tell(pb),
(avio_size(pb) - avio_tell(pb)) / 14);
goto skip;
} |
2d6f3014 |
for (n = 0; n < n_pkts; n++) { |
45a8a02a |
avio_skip(pb, 2); |
e63a3628 |
pts = avio_rb32(pb);
pos = avio_rb32(pb); |
45a8a02a |
avio_skip(pb, 4); /* packet no. */ |
2d6f3014 |
av_add_index_entry(st, pos, pts, 0, 0, AVINDEX_KEYFRAME);
}
skip: |
aac07a7a |
if (next_off && avio_tell(pb) < next_off &&
avio_seek(pb, next_off, SEEK_SET) < 0) {
av_log(s, AV_LOG_ERROR,
"Non-linear index detected, not supported\n"); |
2d6f3014 |
return -1; |
aac07a7a |
} |
2d6f3014 |
} while (next_off);
return 0;
} |
ff1463dc |
|
412b4367 |
static int rm_read_header_old(AVFormatContext *s) |
7b2a2ce5 |
{ |
1edddc99 |
RMDemuxContext *rm = s->priv_data; |
7b2a2ce5 |
AVStream *st;
rm->old_format = 1; |
3b3bbdd3 |
st = avformat_new_stream(s, NULL); |
7b2a2ce5 |
if (!st)
return -1; |
886e89d0 |
st->priv_data = ff_rm_alloc_rmstream(); |
da7e31a2 |
if (!st->priv_data)
return AVERROR(ENOMEM); |
886e89d0 |
return rm_read_audio_stream_info(s, s->pb, st, st->priv_data, 1); |
7b2a2ce5 |
}
|
35bbc195 |
static int rm_read_multi(AVFormatContext *s, AVIOContext *pb,
AVStream *st, char *mime)
{
int number_of_streams = avio_rb16(pb);
int number_of_mdpr;
int i, ret;
unsigned size2;
for (i = 0; i<number_of_streams; i++)
avio_rb16(pb);
number_of_mdpr = avio_rb16(pb);
if (number_of_mdpr != 1) {
avpriv_request_sample(s, "MLTI with multiple (%d) MDPR", number_of_mdpr);
}
for (i = 0; i < number_of_mdpr; i++) {
AVStream *st2;
if (i > 0) {
st2 = avformat_new_stream(s, NULL);
if (!st2) {
ret = AVERROR(ENOMEM);
return ret;
}
st2->id = st->id + (i<<16); |
6f69f7a8 |
st2->codecpar->bit_rate = st->codecpar->bit_rate; |
35bbc195 |
st2->start_time = st->start_time;
st2->duration = st->duration; |
6f69f7a8 |
st2->codecpar->codec_type = AVMEDIA_TYPE_DATA; |
35bbc195 |
st2->priv_data = ff_rm_alloc_rmstream();
if (!st2->priv_data)
return AVERROR(ENOMEM);
} else
st2 = st;
size2 = avio_rb32(pb);
ret = ff_rm_read_mdpr_codecdata(s, s->pb, st2, st2->priv_data,
size2, mime);
if (ret < 0)
return ret;
}
return 0;
}
|
6e9651d1 |
static int rm_read_header(AVFormatContext *s) |
7b2a2ce5 |
{ |
1edddc99 |
RMDemuxContext *rm = s->priv_data; |
7b2a2ce5 |
AVStream *st; |
471fe57e |
AVIOContext *pb = s->pb; |
ff1463dc |
unsigned int tag; |
07cb073b |
int tag_size; |
7b2a2ce5 |
unsigned int start_time, duration; |
2d6f3014 |
unsigned int data_off = 0, indx_off = 0; |
19a61bf3 |
char buf[128], mime[128]; |
7b2a2ce5 |
int flags = 0; |
aab74a38 |
int ret = -1; |
02fff499 |
unsigned size, v; |
856452cf |
int64_t codec_pos; |
7b2a2ce5 |
|
e63a3628 |
tag = avio_rl32(pb); |
7b2a2ce5 |
if (tag == MKTAG('.', 'r', 'a', 0xfd)) {
/* very old .ra format */ |
412b4367 |
return rm_read_header_old(s); |
7b2a2ce5 |
} else if (tag != MKTAG('.', 'R', 'M', 'F')) { |
6f3e0b21 |
return AVERROR(EIO); |
7b2a2ce5 |
}
|
1697c29d |
tag_size = avio_rb32(pb);
avio_skip(pb, tag_size - 8); |
7b2a2ce5 |
for(;;) { |
d34ec64a |
if (avio_feof(pb)) |
aab74a38 |
goto fail; |
e63a3628 |
tag = avio_rl32(pb);
tag_size = avio_rb32(pb);
avio_rb16(pb); |
bec96a72 |
av_log(s, AV_LOG_TRACE, "tag=%s size=%d\n",
av_fourcc2str(tag), tag_size); |
7b2a2ce5 |
if (tag_size < 10 && tag != MKTAG('D', 'A', 'T', 'A')) |
aab74a38 |
goto fail; |
7b2a2ce5 |
switch(tag) {
case MKTAG('P', 'R', 'O', 'P'):
/* file header */ |
e63a3628 |
avio_rb32(pb); /* max bit rate */
avio_rb32(pb); /* avg bit rate */
avio_rb32(pb); /* max packet size */
avio_rb32(pb); /* avg packet size */
avio_rb32(pb); /* nb packets */ |
6d4e0d1b |
duration = avio_rb32(pb); /* duration */
s->duration = av_rescale(duration, AV_TIME_BASE, 1000); |
e63a3628 |
avio_rb32(pb); /* preroll */
indx_off = avio_rb32(pb); /* index offset */
data_off = avio_rb32(pb); /* data offset */
avio_rb16(pb); /* nb streams */
flags = avio_rb16(pb); /* flags */ |
7b2a2ce5 |
break;
case MKTAG('C', 'O', 'N', 'T'): |
bf87908c |
rm_read_metadata(s, pb, 1); |
7b2a2ce5 |
break;
case MKTAG('M', 'D', 'P', 'R'): |
3b3bbdd3 |
st = avformat_new_stream(s, NULL); |
aab74a38 |
if (!st) {
ret = AVERROR(ENOMEM);
goto fail;
} |
e63a3628 |
st->id = avio_rb16(pb);
avio_rb32(pb); /* max bit rate */ |
9200514a |
st->codecpar->bit_rate = avio_rb32(pb); /* bit rate */ |
e63a3628 |
avio_rb32(pb); /* max packet size */
avio_rb32(pb); /* avg packet size */
start_time = avio_rb32(pb); /* start time */
avio_rb32(pb); /* preroll */
duration = avio_rb32(pb); /* duration */ |
7b2a2ce5 |
st->start_time = start_time;
st->duration = duration; |
6d4e0d1b |
if(duration>0)
s->duration = AV_NOPTS_VALUE; |
7b2a2ce5 |
get_str8(pb, buf, sizeof(buf)); /* desc */ |
19a61bf3 |
get_str8(pb, mime, sizeof(mime)); /* mimetype */ |
9200514a |
st->codecpar->codec_type = AVMEDIA_TYPE_DATA; |
886e89d0 |
st->priv_data = ff_rm_alloc_rmstream(); |
da7e31a2 |
if (!st->priv_data)
return AVERROR(ENOMEM); |
02fff499 |
size = avio_rb32(pb); |
856452cf |
codec_pos = avio_tell(pb); |
02fff499 |
ffio_ensure_seekback(pb, 4);
v = avio_rb32(pb);
if (v == MKBETAG('M', 'L', 'T', 'I')) { |
35bbc195 |
ret = rm_read_multi(s, s->pb, st, mime);
if (ret < 0)
goto fail; |
856452cf |
avio_seek(pb, codec_pos + size, SEEK_SET);
} else { |
02fff499 |
avio_skip(pb, -4); |
856452cf |
if (ff_rm_read_mdpr_codecdata(s, s->pb, st, st->priv_data,
size, mime) < 0)
goto fail;
} |
02fff499 |
|
7b2a2ce5 |
break;
case MKTAG('D', 'A', 'T', 'A'):
goto header_end;
default:
/* unknown tag: skip it */ |
45a8a02a |
avio_skip(pb, tag_size - 10); |
7b2a2ce5 |
break;
}
}
header_end: |
e63a3628 |
rm->nb_packets = avio_rb32(pb); /* number of packets */ |
7b2a2ce5 |
if (!rm->nb_packets && (flags & 4))
rm->nb_packets = 3600 * 25; |
e63a3628 |
avio_rb32(pb); /* next data header */ |
2d6f3014 |
if (!data_off) |
384c9c2f |
data_off = avio_tell(pb) - 18; |
83548fe8 |
if (indx_off && (pb->seekable & AVIO_SEEKABLE_NORMAL) &&
!(s->flags & AVFMT_FLAG_IGNIDX) && |
f59d8ff8 |
avio_seek(pb, indx_off, SEEK_SET) >= 0) { |
2d6f3014 |
rm_read_index(s); |
f59d8ff8 |
avio_seek(pb, data_off + 18, SEEK_SET); |
2d6f3014 |
}
|
7b2a2ce5 |
return 0; |
aab74a38 |
fail:
rm_read_close(s);
return ret; |
7b2a2ce5 |
}
|
471fe57e |
static int get_num(AVIOContext *pb, int *len) |
7b2a2ce5 |
{
int n, n1;
|
e63a3628 |
n = avio_rb16(pb); |
7b2a2ce5 |
(*len)-=2; |
e3052ce7 |
n &= 0x7FFF; |
7b2a2ce5 |
if (n >= 0x4000) {
return n - 0x4000;
} else { |
e63a3628 |
n1 = avio_rb16(pb); |
7b2a2ce5 |
(*len)-=2;
return (n << 16) | n1;
}
}
/* multiple of 20 bytes for ra144 (ugly) */
#define RAW_PACKET_SIZE 1000
|
5badcdf2 |
static int rm_sync(AVFormatContext *s, int64_t *timestamp, int *flags, int *stream_index, int64_t *pos){ |
1edddc99 |
RMDemuxContext *rm = s->priv_data; |
471fe57e |
AVIOContext *pb = s->pb; |
7b2a2ce5 |
AVStream *st;
uint32_t state=0xFFFFFFFF;
|
d34ec64a |
while(!avio_feof(pb)){ |
ddf8e75e |
int len, num, i; |
856452cf |
int mlti_id; |
384c9c2f |
*pos= avio_tell(pb) - 3; |
7b2a2ce5 |
if(rm->remaining_len > 0){
num= rm->current_stream; |
856452cf |
mlti_id = 0; |
7b2a2ce5 |
len= rm->remaining_len;
*timestamp = AV_NOPTS_VALUE;
*flags= 0;
}else{ |
e63a3628 |
state= (state<<8) + avio_r8(pb); |
7b2a2ce5 |
if(state == MKBETAG('I', 'N', 'D', 'X')){ |
b5b9ff2a |
int n_pkts, expected_len; |
e63a3628 |
len = avio_rb32(pb); |
45a8a02a |
avio_skip(pb, 2); |
e63a3628 |
n_pkts = avio_rb32(pb); |
b5b9ff2a |
expected_len = 20 + n_pkts * 14;
if (len == 20)
/* some files don't add index entries to chunk size... */
len = expected_len;
else if (len != expected_len)
av_log(s, AV_LOG_WARNING,
"Index size %d (%d pkts) is wrong, should be %d.\n",
len, n_pkts, expected_len);
len -= 14; // we already read part of the index header |
7b2a2ce5 |
if(len<0)
continue;
goto skip; |
98287358 |
} else if (state == MKBETAG('D','A','T','A')) {
av_log(s, AV_LOG_WARNING,
"DATA tag in middle of chunk, file may be broken.\n"); |
7b2a2ce5 |
}
|
83c0ba3d |
if(state > (unsigned)0xFFFF || state <= 12) |
7b2a2ce5 |
continue; |
e75e603c |
len=state - 12; |
7b2a2ce5 |
state= 0xFFFFFFFF;
|
e63a3628 |
num = avio_rb16(pb);
*timestamp = avio_rb32(pb); |
856452cf |
mlti_id = (avio_r8(pb)>>1)-1<<16;
mlti_id = FFMAX(mlti_id, 0); |
e63a3628 |
*flags = avio_r8(pb); /* flags */ |
7b2a2ce5 |
}
for(i=0;i<s->nb_streams;i++) {
st = s->streams[i]; |
856452cf |
if (mlti_id + num == st->id) |
7b2a2ce5 |
break;
}
if (i == s->nb_streams) {
skip:
/* skip packet if unknown number */ |
45a8a02a |
avio_skip(pb, len); |
b8cc5a9f |
rm->remaining_len = 0; |
7b2a2ce5 |
continue;
}
*stream_index= i;
return len;
}
return -1;
}
|
471fe57e |
static int rm_assemble_video_frame(AVFormatContext *s, AVIOContext *pb, |
ba614729 |
RMDemuxContext *rm, RMStream *vst, |
7c1f6df4 |
AVPacket *pkt, int len, int *pseq,
int64_t *timestamp) |
383b123e |
{ |
7fc73d9a |
int hdr; |
482c86f2 |
int seq = 0, pic_num = 0, len2 = 0, pos = 0; //init to silence compiler warning |
383b123e |
int type; |
161dee43 |
int ret; |
383b123e |
|
e63a3628 |
hdr = avio_r8(pb); len--; |
383b123e |
type = hdr >> 6; |
f48d5457 |
if(type != 3){ // not frame as a part of packet |
e63a3628 |
seq = avio_r8(pb); len--; |
f48d5457 |
}
if(type != 1){ // not whole frame |
383b123e |
len2 = get_num(pb, &len); |
f48d5457 |
pos = get_num(pb, &len); |
e63a3628 |
pic_num = avio_r8(pb); len--; |
f48d5457 |
} |
aaf02f6e |
if(len<0) { |
d04ec6ff |
av_log(s, AV_LOG_ERROR, "Insufficient data\n"); |
f48d5457 |
return -1; |
aaf02f6e |
} |
f48d5457 |
rm->remaining_len = len;
if(type&1){ // frame, not slice |
7c1f6df4 |
if(type == 3){ // frame as a part of packet |
f48d5457 |
len= len2; |
7c1f6df4 |
*timestamp = pos;
} |
aaf02f6e |
if(rm->remaining_len < len) { |
d04ec6ff |
av_log(s, AV_LOG_ERROR, "Insufficient remaining len\n"); |
e45673cb |
return -1; |
aaf02f6e |
} |
f48d5457 |
rm->remaining_len -= len; |
383b123e |
if(av_new_packet(pkt, len + 9) < 0)
return AVERROR(EIO);
pkt->data[0] = 0;
AV_WL32(pkt->data + 1, 1);
AV_WL32(pkt->data + 5, 0); |
161dee43 |
if ((ret = avio_read(pb, pkt->data + 9, len)) != len) { |
c2f861ca |
av_packet_unref(pkt); |
aaf02f6e |
av_log(s, AV_LOG_ERROR, "Failed to read %d bytes\n", len); |
161dee43 |
return ret < 0 ? ret : AVERROR(EIO);
} |
383b123e |
return 0;
}
//now we have to deal with single slice
|
7a160bca |
*pseq = seq; |
ba614729 |
if((seq & 0x7F) == 1 || vst->curpic_num != pic_num){ |
0780fe27 |
if (len2 > ffio_limit(pb, len2)) {
av_log(s, AV_LOG_ERROR, "Impossibly sized packet\n");
return AVERROR_INVALIDDATA;
} |
ba614729 |
vst->slices = ((hdr & 0x3F) << 1) + 1;
vst->videobufsize = len2 + 8*vst->slices + 1; |
ce70f28a |
av_packet_unref(&vst->pkt); //FIXME this should be output. |
0b4ff0c9 |
if(av_new_packet(&vst->pkt, vst->videobufsize) < 0) |
52537534 |
return AVERROR(ENOMEM); |
161dee43 |
memset(vst->pkt.data, 0, vst->pkt.size); |
ba614729 |
vst->videobufpos = 8*vst->slices + 1;
vst->cur_slice = 0;
vst->curpic_num = pic_num; |
384c9c2f |
vst->pktpos = avio_tell(pb); |
383b123e |
} |
e35033e6 |
if(type == 2) |
383b123e |
len = FFMIN(len, pos);
|
aaf02f6e |
if(++vst->cur_slice > vst->slices) {
av_log(s, AV_LOG_ERROR, "cur slice %d, too large\n", vst->cur_slice); |
383b123e |
return 1; |
aaf02f6e |
} |
161047f0 |
if(!vst->pkt.data)
return AVERROR(ENOMEM); |
0b4ff0c9 |
AV_WL32(vst->pkt.data - 7 + 8*vst->cur_slice, 1);
AV_WL32(vst->pkt.data - 3 + 8*vst->cur_slice, vst->videobufpos - 8*vst->slices - 1); |
aaf02f6e |
if(vst->videobufpos + len > vst->videobufsize) {
av_log(s, AV_LOG_ERROR, "outside videobufsize\n"); |
383b123e |
return 1; |
aaf02f6e |
} |
e63a3628 |
if (avio_read(pb, vst->pkt.data + vst->videobufpos, len) != len) |
383b123e |
return AVERROR(EIO); |
ba614729 |
vst->videobufpos += len; |
383b123e |
rm->remaining_len-= len;
|
3dc99a18 |
if (type == 2 || vst->videobufpos == vst->videobufsize) { |
188e67ea |
vst->pkt.data[0] = vst->cur_slice-1;
*pkt= vst->pkt; |
6fde7afa |
vst->pkt.data= NULL; |
188e67ea |
vst->pkt.size= 0; |
1afddbe5 |
vst->pkt.buf = NULL; |
188e67ea |
if(vst->slices != vst->cur_slice) //FIXME find out how to set slices correct from the begin |
0b4ff0c9 |
memmove(pkt->data + 1 + 8*vst->cur_slice, pkt->data + 1 + 8*vst->slices, |
ba614729 |
vst->videobufpos - 1 - 8*vst->slices); |
ce0453aa |
pkt->size = vst->videobufpos + 8*(vst->cur_slice - vst->slices); |
188e67ea |
pkt->pts = AV_NOPTS_VALUE;
pkt->pos = vst->pktpos; |
cbb5da57 |
vst->slices = 0; |
188e67ea |
return 0; |
383b123e |
}
return 1;
}
|
5c470b91 |
static inline void
rm_ac3_swap_bytes (AVStream *st, AVPacket *pkt)
{
uint8_t *ptr;
int j;
|
9200514a |
if (st->codecpar->codec_id == AV_CODEC_ID_AC3) { |
5c470b91 |
ptr = pkt->data;
for (j=0;j<pkt->size;j+=2) {
FFSWAP(int, ptr[0], ptr[1]);
ptr += 2;
}
}
}
|
77d2a1ca |
static int readfull(AVFormatContext *s, AVIOContext *pb, uint8_t *dst, int n) {
int ret = avio_read(pb, dst, n);
if (ret != n) {
if (ret >= 0) memset(dst + ret, 0, n - ret);
else memset(dst , 0, n);
av_log(s, AV_LOG_ERROR, "Failed to fully read block\n");
}
return ret;
}
|
0fd36362 |
int |
471fe57e |
ff_rm_parse_packet (AVFormatContext *s, AVIOContext *pb, |
886e89d0 |
AVStream *st, RMStream *ast, int len, AVPacket *pkt, |
34bddc39 |
int *seq, int flags, int64_t timestamp) |
afd302fa |
{ |
1edddc99 |
RMDemuxContext *rm = s->priv_data; |
aecb9d39 |
int ret; |
afd302fa |
|
9200514a |
if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) { |
afd302fa |
rm->current_stream= st->id; |
aecb9d39 |
ret = rm_assemble_video_frame(s, pb, rm, ast, pkt, len, seq, ×tamp);
if(ret) |
f7106e00 |
return ret < 0 ? ret : -1; //got partial frame or error |
9200514a |
} else if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) { |
10397215 |
if ((ast->deint_id == DEINT_ID_GENR) ||
(ast->deint_id == DEINT_ID_INT4) ||
(ast->deint_id == DEINT_ID_SIPR)) { |
afd302fa |
int x; |
ba614729 |
int sps = ast->sub_packet_size;
int cfs = ast->coded_framesize;
int h = ast->sub_packet_h;
int y = ast->sub_packet_cnt;
int w = ast->audio_framesize; |
afd302fa |
|
34bddc39 |
if (flags & 2) |
ba614729 |
y = ast->sub_packet_cnt = 0; |
afd302fa |
if (!y) |
34bddc39 |
ast->audiotimestamp = timestamp; |
afd302fa |
|
10397215 |
switch (ast->deint_id) {
case DEINT_ID_INT4: |
afd302fa |
for (x = 0; x < h/2; x++) |
77d2a1ca |
readfull(s, pb, ast->pkt.data+x*2*w+y*cfs, cfs); |
afd302fa |
break; |
10397215 |
case DEINT_ID_GENR: |
afd302fa |
for (x = 0; x < w/sps; x++) |
77d2a1ca |
readfull(s, pb, ast->pkt.data+sps*(h*x+((h+1)/2)*(y&1)+(y>>1)), sps); |
afd302fa |
break; |
10397215 |
case DEINT_ID_SIPR: |
77d2a1ca |
readfull(s, pb, ast->pkt.data + y * w, w); |
cf16c17a |
break; |
afd302fa |
}
|
ba614729 |
if (++(ast->sub_packet_cnt) < h) |
afd302fa |
return -1; |
10397215 |
if (ast->deint_id == DEINT_ID_SIPR) |
1ab0406d |
ff_rm_reorder_sipr_data(ast->pkt.data, h, w); |
cf16c17a |
|
508fe07a |
ast->sub_packet_cnt = 0;
rm->audio_stream_num = st->index; |
de4ded06 |
if (st->codecpar->block_align <= 0) {
av_log(s, AV_LOG_ERROR, "Invalid block alignment %d\n", st->codecpar->block_align);
return AVERROR_INVALIDDATA;
} |
9200514a |
rm->audio_pkt_cnt = h * w / st->codecpar->block_align; |
10397215 |
} else if ((ast->deint_id == DEINT_ID_VBRF) ||
(ast->deint_id == DEINT_ID_VBRS)) { |
afd302fa |
int x;
rm->audio_stream_num = st->index; |
e63a3628 |
ast->sub_packet_cnt = (avio_rb16(pb) & 0xf0) >> 4; |
ba614729 |
if (ast->sub_packet_cnt) {
for (x = 0; x < ast->sub_packet_cnt; x++) |
e63a3628 |
ast->sub_packet_lengths[x] = avio_rb16(pb); |
c5efef7b |
rm->audio_pkt_cnt = ast->sub_packet_cnt; |
34bddc39 |
ast->audiotimestamp = timestamp; |
c5efef7b |
} else
return -1; |
badbe09a |
} else { |
95ce02b3 |
ret = av_get_packet(pb, pkt, len);
if (ret < 0) |
65b83ce0 |
return ret; |
e29378ff |
rm_ac3_swap_bytes(st, pkt); |
badbe09a |
} |
65b83ce0 |
} else { |
95ce02b3 |
ret = av_get_packet(pb, pkt, len);
if (ret < 0) |
65b83ce0 |
return ret;
} |
afd302fa |
pkt->stream_index = st->index;
|
7c1f6df4 |
pkt->pts = timestamp; |
34bddc39 |
if (flags & 2) |
cc947f04 |
pkt->flags |= AV_PKT_FLAG_KEY; |
afd302fa |
|
9200514a |
return st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO ? rm->audio_pkt_cnt : 0; |
afd302fa |
}
|
a9f84821 |
int |
471fe57e |
ff_rm_retrieve_cache (AVFormatContext *s, AVIOContext *pb, |
886e89d0 |
AVStream *st, RMStream *ast, AVPacket *pkt) |
d4d1b5fb |
{ |
1edddc99 |
RMDemuxContext *rm = s->priv_data; |
95ce02b3 |
int ret; |
d4d1b5fb |
|
1bf50711 |
av_assert0 (rm->audio_pkt_cnt > 0); |
d4d1b5fb |
|
3e033da8 |
if (ast->deint_id == DEINT_ID_VBRF || |
65b83ce0 |
ast->deint_id == DEINT_ID_VBRS) { |
95ce02b3 |
ret = av_get_packet(pb, pkt, ast->sub_packet_lengths[ast->sub_packet_cnt - rm->audio_pkt_cnt]); |
65b83ce0 |
if (ret < 0)
return ret;
} else { |
95ce02b3 |
ret = av_new_packet(pkt, st->codecpar->block_align); |
7207dd8f |
if (ret < 0)
return ret; |
9200514a |
memcpy(pkt->data, ast->pkt.data + st->codecpar->block_align * //FIXME avoid this
(ast->sub_packet_h * ast->audio_framesize / st->codecpar->block_align - rm->audio_pkt_cnt),
st->codecpar->block_align); |
d4d1b5fb |
}
rm->audio_pkt_cnt--; |
55d330f9 |
if ((pkt->pts = ast->audiotimestamp) != AV_NOPTS_VALUE) {
ast->audiotimestamp = AV_NOPTS_VALUE; |
cc947f04 |
pkt->flags = AV_PKT_FLAG_KEY; |
55d330f9 |
} else |
c8829279 |
pkt->flags = 0; |
d4d1b5fb |
pkt->stream_index = st->index; |
a9f84821 |
return rm->audio_pkt_cnt; |
d4d1b5fb |
}
|
7b2a2ce5 |
static int rm_read_packet(AVFormatContext *s, AVPacket *pkt)
{ |
1edddc99 |
RMDemuxContext *rm = s->priv_data; |
7fc73d9a |
AVStream *st = NULL; // init to silence compiler warning |
6a2d3fc3 |
int i, len, res, seq = 1; |
7b2a2ce5 |
int64_t timestamp, pos; |
7a4a64e7 |
int flags; |
7b2a2ce5 |
|
6a2d3fc3 |
for (;;) { |
7268f0bd |
if (rm->audio_pkt_cnt) {
// If there are queued audio packet return them first
st = s->streams[rm->audio_stream_num]; |
c01a462c |
res = ff_rm_retrieve_cache(s, s->pb, st, st->priv_data, pkt);
if(res < 0)
return res; |
190413cf |
flags = 0; |
6a2d3fc3 |
} else {
if (rm->old_format) { |
7268f0bd |
RMStream *ast; |
7ccefd08 |
|
7268f0bd |
st = s->streams[0];
ast = st->priv_data; |
6a2d3fc3 |
timestamp = AV_NOPTS_VALUE;
len = !ast->audio_framesize ? RAW_PACKET_SIZE :
ast->coded_framesize * ast->sub_packet_h / 2;
flags = (seq++ == 1) ? 2 : 0; |
384c9c2f |
pos = avio_tell(s->pb); |
7268f0bd |
} else { |
5badcdf2 |
len = rm_sync(s, ×tamp, &flags, &i, &pos); |
c3df4a3b |
if (len > 0)
st = s->streams[i]; |
6a2d3fc3 |
}
|
8ee113af |
if (avio_feof(s->pb))
return AVERROR_EOF;
if (len <= 0) |
6a2d3fc3 |
return AVERROR(EIO); |
7b2a2ce5 |
|
7268f0bd |
res = ff_rm_parse_packet (s, s->pb, st, st->priv_data, len, pkt, |
34bddc39 |
&seq, flags, timestamp); |
aecb9d39 |
if (res < -1)
return res; |
7a4a64e7 |
if((flags&2) && (seq&0x7F) == 1) |
7268f0bd |
av_add_index_entry(st, pos, timestamp, 0, 0, AVINDEX_KEYFRAME); |
6a2d3fc3 |
if (res)
continue;
} |
7b2a2ce5 |
|
dc3685e1 |
if( (st->discard >= AVDISCARD_NONKEY && !(flags&2))
|| st->discard >= AVDISCARD_ALL){ |
ce70f28a |
av_packet_unref(pkt); |
6a2d3fc3 |
} else
break; |
7b2a2ce5 |
}
return 0;
}
static int rm_read_close(AVFormatContext *s)
{ |
ba614729 |
int i;
for (i=0;i<s->nb_streams;i++)
ff_rm_free_rmstream(s->streams[i]->priv_data); |
7b2a2ce5 |
return 0;
}
static int rm_probe(AVProbeData *p)
{
/* check file header */
if ((p->buf[0] == '.' && p->buf[1] == 'R' &&
p->buf[2] == 'M' && p->buf[3] == 'F' &&
p->buf[4] == 0 && p->buf[5] == 0) ||
(p->buf[0] == '.' && p->buf[1] == 'r' &&
p->buf[2] == 'a' && p->buf[3] == 0xfd))
return AVPROBE_SCORE_MAX;
else
return 0;
}
static int64_t rm_read_dts(AVFormatContext *s, int stream_index,
int64_t *ppos, int64_t pos_limit)
{ |
1edddc99 |
RMDemuxContext *rm = s->priv_data; |
7b2a2ce5 |
int64_t pos, dts;
int stream_index2, flags, len, h;
pos = *ppos;
if(rm->old_format)
return AV_NOPTS_VALUE;
|
7e4111cf |
if (avio_seek(s->pb, pos, SEEK_SET) < 0)
return AV_NOPTS_VALUE;
|
7b2a2ce5 |
rm->remaining_len=0;
for(;;){
int seq=1;
AVStream *st;
|
5badcdf2 |
len = rm_sync(s, &dts, &flags, &stream_index2, &pos); |
7b2a2ce5 |
if(len<0)
return AV_NOPTS_VALUE;
st = s->streams[stream_index2]; |
9200514a |
if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) { |
e63a3628 |
h= avio_r8(s->pb); len--; |
7b2a2ce5 |
if(!(h & 0x40)){ |
e63a3628 |
seq = avio_r8(s->pb); len--; |
7b2a2ce5 |
}
}
if((flags&2) && (seq&0x7F) == 1){ |
1a3eb042 |
av_log(s, AV_LOG_TRACE, "%d %d-%d %"PRId64" %d\n", |
72eaba5e |
flags, stream_index2, stream_index, dts, seq); |
7b2a2ce5 |
av_add_index_entry(st, pos, dts, 0, 0, AVINDEX_KEYFRAME);
if(stream_index2 == stream_index)
break;
}
|
45a8a02a |
avio_skip(s->pb, len); |
7b2a2ce5 |
}
*ppos = pos;
return dts;
}
|
519ebb5e |
static int rm_read_seek(AVFormatContext *s, int stream_index,
int64_t pts, int flags)
{
RMDemuxContext *rm = s->priv_data;
if (ff_seek_frame_binary(s, stream_index, pts, flags) < 0)
return -1;
rm->audio_pkt_cnt = 0;
return 0;
}
|
66355be3 |
AVInputFormat ff_rm_demuxer = { |
dfc2c4d9 |
.name = "rm", |
6774247a |
.long_name = NULL_IF_CONFIG_SMALL("RealMedia"), |
dfc2c4d9 |
.priv_data_size = sizeof(RMDemuxContext),
.read_probe = rm_probe,
.read_header = rm_read_header,
.read_packet = rm_read_packet,
.read_close = rm_read_close,
.read_timestamp = rm_read_dts, |
519ebb5e |
.read_seek = rm_read_seek, |
7b2a2ce5 |
}; |
ff13ba92 |
|
66355be3 |
AVInputFormat ff_rdt_demuxer = { |
dfc2c4d9 |
.name = "rdt",
.long_name = NULL_IF_CONFIG_SMALL("RDT demuxer"),
.priv_data_size = sizeof(RMDemuxContext),
.read_close = rm_read_close, |
08826891 |
.flags = AVFMT_NOFILE, |
ff13ba92 |
}; |
35bbc195 |
static int ivr_probe(AVProbeData *p)
{
if (memcmp(p->buf, ".R1M\x0\x1\x1", 7) &&
memcmp(p->buf, ".REC", 4))
return 0;
return AVPROBE_SCORE_MAX;
}
static int ivr_read_header(AVFormatContext *s)
{
unsigned tag, type, len, tlen, value; |
80ceb469 |
int i, j, n, count, nb_streams = 0, ret; |
35bbc195 |
uint8_t key[256], val[256];
AVIOContext *pb = s->pb;
AVStream *st;
int64_t pos, offset, temp;
pos = avio_tell(pb);
tag = avio_rl32(pb);
if (tag == MKTAG('.','R','1','M')) {
if (avio_rb16(pb) != 1)
return AVERROR_INVALIDDATA;
if (avio_r8(pb) != 1)
return AVERROR_INVALIDDATA;
len = avio_rb32(pb);
avio_skip(pb, len);
avio_skip(pb, 5);
temp = avio_rb64(pb);
while (!avio_feof(pb) && temp) {
offset = temp;
temp = avio_rb64(pb);
}
avio_skip(pb, offset - avio_tell(pb));
if (avio_r8(pb) != 1)
return AVERROR_INVALIDDATA;
len = avio_rb32(pb);
avio_skip(pb, len);
if (avio_r8(pb) != 2)
return AVERROR_INVALIDDATA;
avio_skip(pb, 16);
pos = avio_tell(pb);
tag = avio_rl32(pb);
}
if (tag != MKTAG('.','R','E','C'))
return AVERROR_INVALIDDATA;
if (avio_r8(pb) != 0)
return AVERROR_INVALIDDATA;
count = avio_rb32(pb);
for (i = 0; i < count; i++) {
if (avio_feof(pb))
return AVERROR_INVALIDDATA;
type = avio_r8(pb);
tlen = avio_rb32(pb);
avio_get_str(pb, tlen, key, sizeof(key));
len = avio_rb32(pb);
if (type == 5) {
avio_get_str(pb, len, val, sizeof(val));
av_log(s, AV_LOG_DEBUG, "%s = '%s'\n", key, val);
} else if (type == 4) {
av_log(s, AV_LOG_DEBUG, "%s = '0x", key); |
124eb202 |
for (j = 0; j < len; j++) {
if (avio_feof(pb))
return AVERROR_INVALIDDATA; |
35bbc195 |
av_log(s, AV_LOG_DEBUG, "%X", avio_r8(pb)); |
124eb202 |
} |
35bbc195 |
av_log(s, AV_LOG_DEBUG, "'\n");
} else if (len == 4 && type == 3 && !strncmp(key, "StreamCount", tlen)) {
nb_streams = value = avio_rb32(pb);
} else if (len == 4 && type == 3) {
value = avio_rb32(pb);
av_log(s, AV_LOG_DEBUG, "%s = %d\n", key, value);
} else {
av_log(s, AV_LOG_DEBUG, "Skipping unsupported key: %s\n", key);
avio_skip(pb, len);
}
}
for (n = 0; n < nb_streams; n++) {
st = avformat_new_stream(s, NULL);
if (!st)
return AVERROR(ENOMEM);
st->priv_data = ff_rm_alloc_rmstream();
if (!st->priv_data)
return AVERROR(ENOMEM);
if (avio_r8(pb) != 1)
return AVERROR_INVALIDDATA;
count = avio_rb32(pb);
for (i = 0; i < count; i++) {
if (avio_feof(pb))
return AVERROR_INVALIDDATA;
type = avio_r8(pb);
tlen = avio_rb32(pb);
avio_get_str(pb, tlen, key, sizeof(key));
len = avio_rb32(pb);
if (type == 5) {
avio_get_str(pb, len, val, sizeof(val));
av_log(s, AV_LOG_DEBUG, "%s = '%s'\n", key, val);
} else if (type == 4 && !strncmp(key, "OpaqueData", tlen)) {
ret = ffio_ensure_seekback(pb, 4);
if (ret < 0)
return ret;
if (avio_rb32(pb) == MKBETAG('M', 'L', 'T', 'I')) {
ret = rm_read_multi(s, pb, st, NULL);
} else {
avio_seek(pb, -4, SEEK_CUR);
ret = ff_rm_read_mdpr_codecdata(s, pb, st, st->priv_data, len, NULL);
}
if (ret < 0)
return ret;
} else if (type == 4) {
int j;
av_log(s, AV_LOG_DEBUG, "%s = '0x", key);
for (j = 0; j < len; j++)
av_log(s, AV_LOG_DEBUG, "%X", avio_r8(pb));
av_log(s, AV_LOG_DEBUG, "'\n");
} else if (len == 4 && type == 3 && !strncmp(key, "Duration", tlen)) {
st->duration = avio_rb32(pb);
} else if (len == 4 && type == 3) {
value = avio_rb32(pb);
av_log(s, AV_LOG_DEBUG, "%s = %d\n", key, value);
} else {
av_log(s, AV_LOG_DEBUG, "Skipping unsupported key: %s\n", key);
avio_skip(pb, len);
}
}
}
if (avio_r8(pb) != 6)
return AVERROR_INVALIDDATA;
avio_skip(pb, 12);
avio_skip(pb, avio_rb64(pb) + pos - avio_tell(s->pb));
if (avio_r8(pb) != 8)
return AVERROR_INVALIDDATA;
avio_skip(pb, 8);
return 0;
}
static int ivr_read_packet(AVFormatContext *s, AVPacket *pkt)
{
RMDemuxContext *rm = s->priv_data;
int ret = AVERROR_EOF, opcode;
AVIOContext *pb = s->pb;
unsigned size, index;
int64_t pos, pts;
if (avio_feof(pb) || rm->data_end)
return AVERROR_EOF;
pos = avio_tell(pb);
for (;;) {
if (rm->audio_pkt_cnt) {
// If there are queued audio packet return them first
AVStream *st;
st = s->streams[rm->audio_stream_num];
ret = ff_rm_retrieve_cache(s, pb, st, st->priv_data, pkt);
if (ret < 0) {
return ret;
}
} else {
if (rm->remaining_len) {
avio_skip(pb, rm->remaining_len);
rm->remaining_len = 0;
}
if (avio_feof(pb))
return AVERROR_EOF;
opcode = avio_r8(pb);
if (opcode == 2) {
AVStream *st;
int seq = 1;
pts = avio_rb32(pb);
index = avio_rb16(pb);
if (index >= s->nb_streams)
return AVERROR_INVALIDDATA;
avio_skip(pb, 4);
size = avio_rb32(pb);
avio_skip(pb, 4);
|
80fd348b |
if (size < 1 || size > INT_MAX/4) { |
e3c188e7 |
av_log(s, AV_LOG_ERROR, "size %u is invalid\n", size); |
80fd348b |
return AVERROR_INVALIDDATA;
}
|
35bbc195 |
st = s->streams[index];
ret = ff_rm_parse_packet(s, pb, st, st->priv_data, size, pkt,
&seq, 0, pts);
if (ret < -1) {
return ret;
} else if (ret) {
continue;
}
pkt->pos = pos;
pkt->pts = pts;
pkt->stream_index = index;
} else if (opcode == 7) {
pos = avio_rb64(pb);
if (!pos) {
rm->data_end = 1;
return AVERROR_EOF;
}
} else { |
b18230ee |
av_log(s, AV_LOG_ERROR, "Unsupported opcode=%d at %"PRIX64"\n", opcode, avio_tell(pb) - 1); |
35bbc195 |
return AVERROR(EIO);
}
}
break;
}
return ret;
}
AVInputFormat ff_ivr_demuxer = {
.name = "ivr",
.long_name = NULL_IF_CONFIG_SMALL("IVR (Internet Video Recording)"),
.priv_data_size = sizeof(RMDemuxContext),
.read_probe = ivr_probe,
.read_header = ivr_read_header,
.read_packet = ivr_read_packet, |
c3a24006 |
.read_close = rm_read_close, |
35bbc195 |
.extensions = "ivr",
}; |