34 #define DEINT_ID_GENR MKTAG('g', 'e', 'n', 'r') 35 #define DEINT_ID_INT0 MKTAG('I', 'n', 't', '0') 36 #define DEINT_ID_INT4 MKTAG('I', 'n', 't', '4') 37 #define DEINT_ID_SIPR MKTAG('s', 'i', 'p', 'r') 38 #define DEINT_ID_VBRF MKTAG('v', 'b', 'r', 'f') 39 #define DEINT_ID_VBRS MKTAG('v', 'b', 'r', 's') 77 if (buf_size > 0) *q =
'\0';
104 get_strl(pb, buf,
sizeof(buf), len);
137 if ((startpos + header_size) >=
avio_tell(pb) + 2) {
143 if ((startpos + header_size) >
avio_tell(pb))
153 int codecdata_length;
220 if(sub_packet_size <= 0){
238 if (codecdata_length >= 1) {
289 unsigned int codec_data_size)
299 if (v ==
MKTAG(0xfd,
'a',
'r',
'.')) {
303 }
else if (v ==
MKBETAG(
'L',
'S',
'D',
':')) {
338 0x10000, fps, (1 << 30) - 1);
358 unsigned int size, n_pkts, str_id, next_off, n, pos,
pts;
378 "Invalid stream index %d for index at pos %"PRId64
"\n",
383 "Nr. of packets in packet index for stream index %d " 384 "exceeds filesize (%"PRId64
" at %"PRId64
" = %"PRId64
")\n",
390 for (n = 0; n < n_pkts; n++) {
400 if (next_off &&
avio_tell(pb) < next_off &&
403 "Non-linear index detected, not supported\n");
434 unsigned int data_off = 0, indx_off = 0;
439 if (tag ==
MKTAG(
'.',
'r',
'a', 0xfd)) {
442 }
else if (tag !=
MKTAG(
'.',
'R',
'M',
'F')) {
462 if (tag_size < 10 && tag !=
MKTAG(
'D',
'A',
'T',
'A'))
465 case MKTAG(
'P',
'R',
'O',
'P'):
479 case MKTAG(
'C',
'O',
'N',
'T'):
482 case MKTAG(
'M',
'D',
'P',
'R'):
506 case MKTAG(
'D',
'A',
'T',
'A'):
523 avio_seek(pb, indx_off, SEEK_SET) >= 0) {
543 return (n << 16) | n1;
548 #define RAW_PACKET_SIZE 1000 554 uint32_t
state=0xFFFFFFFF;
565 state= (state<<8) +
avio_r8(pb);
567 if(state ==
MKBETAG(
'I',
'N',
'D',
'X')){
568 int n_pkts, expected_len;
572 expected_len = 20 + n_pkts * 14;
576 else if (len != expected_len)
578 "Index size %d (%d pkts) is wrong, should be %d.\n",
579 len, n_pkts, expected_len);
584 }
else if (state ==
MKBETAG(
'D',
'A',
'T',
'A')) {
586 "DATA tag in middle of chunk, file may be broken.\n");
589 if(state > (
unsigned)0xFFFF || state <= 12)
623 int hdr, seq, pic_num, len2, pos;
659 if((seq & 0x7F) == 1 || vst->
curpic_num != pic_num){
660 vst->
slices = ((hdr & 0x3F) << 1) + 1;
671 len =
FFMIN(len, pos);
711 for (j=0;j<pkt->
size;j+=2) {
712 FFSWAP(
int, ptr[0], ptr[1]);
721 int *seq,
int flags, int64_t timestamp)
748 for (x = 0; x < h/2; x++)
752 for (x = 0; x < w/sps; x++)
794 pkt->
pts = timestamp;
839 int i,
len, res, seq = 1;
840 int64_t timestamp, pos;
858 flags = (seq++ == 1) ? 2 : 0;
861 len=
sync(s, ×tamp, &flags, &i, &pos);
866 if (len <= 0 || s->pb->eof_reached)
870 &seq, flags, timestamp);
871 if((flags&2) && (seq&0x7F) == 1)
900 if ((p->
buf[0] ==
'.' && p->
buf[1] ==
'R' &&
901 p->
buf[2] ==
'M' && p->
buf[3] ==
'F' &&
902 p->
buf[4] == 0 && p->
buf[5] == 0) ||
903 (p->
buf[0] ==
'.' && p->
buf[1] ==
'r' &&
904 p->
buf[2] ==
'a' && p->
buf[3] == 0xfd))
911 int64_t *ppos, int64_t pos_limit)
928 len=
sync(s, &dts, &flags, &stream_index2, &pos);
932 st = s->
streams[stream_index2];
940 if((flags&2) && (seq&0x7F) == 1){
942 flags, stream_index2, stream_index, dts, seq);
944 if(stream_index2 == stream_index)
static int get_num(AVIOContext *pb, int *len)
discard all frames except keyframes
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
int64_t avio_size(AVIOContext *s)
Get the filesize.
#define DEINT_ID_INT0
no interleaving needed
int av_add_index_entry(AVStream *st, int64_t pos, int64_t timestamp, int size, int distance, int flags)
Add an index entry into a sorted list.
static void get_strl(AVIOContext *pb, char *buf, int buf_size, int len)
static int64_t rm_read_dts(AVFormatContext *s, int stream_index, int64_t *ppos, int64_t pos_limit)
const unsigned char ff_sipr_subpk_size[4]
#define AV_LOG_WARNING
Something somehow does not look correct.
int64_t pos
byte position in stream, -1 if unknown
enum AVCodecID codec_id
Specific type of the encoded data (the codec used).
int index
stream index in AVFormatContext
av_log(ac->avr, AV_LOG_TRACE, "%d samples - audio_convert: %s to %s (%s)\, len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt), use_generic ? ac->func_descr_generic :ac->func_descr)
int64_t avio_seek(AVIOContext *s, int64_t offset, int whence)
fseek() equivalent for AVIOContext.
#define FF_ARRAY_ELEMS(a)
static int rm_read_header(AVFormatContext *s)
unsigned int avio_rb16(AVIOContext *s)
This struct describes the properties of an encoded stream.
#define DEINT_ID_VBRS
VBR case for AAC.
int videobufpos
position for the next slice in the video buffer
int audio_stream_num
Stream number for audio packets.
Opaque data information usually continuous.
int ff_rm_read_mdpr_codecdata(AVFormatContext *s, AVIOContext *pb, AVStream *st, RMStream *rst, unsigned int codec_data_size)
Read the MDPR chunk, which contains stream-specific codec initialization parameters.
static int rm_read_extradata(AVIOContext *pb, AVCodecParameters *par, unsigned size)
#define AV_LOG_TRACE
Extremely verbose debugging, useful for libav* development.
unsigned int avio_rb32(AVIOContext *s)
int id
Format-specific stream ID.
enum AVStreamParseType need_parsing
AVStream * avformat_new_stream(AVFormatContext *s, const AVCodec *c)
Add a new stream to a media file.
AVStream ** streams
A list of all streams in the file.
int flags
Flags modifying the (de)muxer behaviour.
int curpic_num
picture number of current frame
static av_cold int read_close(AVFormatContext *ctx)
static int rm_read_index(AVFormatContext *s)
this function assumes that the demuxer has already seeked to the start of the INDX chunk...
static av_always_inline int64_t avio_tell(AVIOContext *s)
ftell() equivalent for AVIOContext.
#define DEINT_ID_GENR
interleaving for Cooker/ATRAC
static int rm_assemble_video_frame(AVFormatContext *s, AVIOContext *pb, RMDemuxContext *rm, RMStream *vst, AVPacket *pkt, int len, int *pseq, int64_t *timestamp)
static void get_str8(AVIOContext *pb, char *buf, int buf_size)
uint64_t channel_layout
Audio only.
int avio_read(AVIOContext *s, unsigned char *buf, int size)
Read size bytes from AVIOContext into buf.
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
int av_new_packet(AVPacket *pkt, int size)
Allocate the payload of a packet and initialize its fields with default values.
static int64_t start_time
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
AVDictionary * metadata
Metadata that applies to the whole file.
static int rm_read_close(AVFormatContext *s)
unsigned int avio_rl32(AVIOContext *s)
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
enum AVMediaType codec_type
General type of the encoded data.
AVBufferRef * buf
A reference to the reference-counted buffer where the packet data is stored.
#define DEINT_ID_VBRF
VBR case for AAC.
int64_t pktpos
first slice position in file
AVRational avg_frame_rate
Average framerate.
RMStream * ff_rm_alloc_rmstream(void)
int flags
A combination of AV_PKT_FLAG values.
int extradata_size
Size of the extradata content in bytes.
int avio_r8(AVIOContext *s)
int av_reduce(int *dst_num, int *dst_den, int64_t num, int64_t den, int64_t max)
Reduce a fraction.
int bit_rate
The average bitrate of the encoded data (in bits per second).
unsigned char * buf
Buffer must have AVPROBE_PADDING_SIZE of extra allocated bytes filled with zero.
common internal API header
unsigned int nb_streams
Number of elements in AVFormatContext.streams.
AVPacket pkt
place to store merged video frame / reordered audio data
int block_align
Audio only.
int seekable
A combination of AVIO_SEEKABLE_ flags or 0 when the stream is not seekable.
audio channel layout utility functions
AVInputFormat ff_rm_demuxer
static av_always_inline int64_t avio_skip(AVIOContext *s, int64_t offset)
Skip given number of bytes forward.
#define DEINT_ID_INT4
interleaving for 28.8
int coded_framesize
Descrambling parameters from container.
static int read_header(FFV1Context *f)
static void rm_ac3_swap_bytes(AVStream *st, AVPacket *pkt)
const AVCodecTag ff_rm_codec_tags[]
#define DEINT_ID_SIPR
interleaving for Sipro
AVIOContext * pb
I/O context.
void av_packet_unref(AVPacket *pkt)
Wipe the packet.
static int rm_probe(AVProbeData *p)
static int read_packet(AVFormatContext *ctx, AVPacket *pkt)
int ff_rm_parse_packet(AVFormatContext *s, AVIOContext *pb, AVStream *st, RMStream *ast, int len, AVPacket *pkt, int *seq, int flags, int64_t timestamp)
Parse one rm-stream packet from the input bytestream.
int av_dict_set(AVDictionary **pm, const char *key, const char *value, int flags)
Set the given entry in *pm, overwriting an existing entry.
This structure contains the data a format has to probe a file.
int audio_pkt_cnt
Output packet counter.
static int sync(AVFormatContext *s, int64_t *timestamp, int *flags, int *stream_index, int64_t *pos)
static int64_t pts
Global timestamp for the audio frames.
const char *const ff_rm_metadata[4]
AVInputFormat ff_rdt_demuxer
void ff_rm_free_rmstream(RMStream *rms)
int64_t duration
Decoding: duration of the stream, in stream time base.
int sample_rate
Audio only.
void ff_rm_reorder_sipr_data(uint8_t *buf, int sub_packet_h, int framesize)
Perform 4-bit block reordering for SIPR data.
int32_t deint_id
Length of each subpacket.
int64_t start_time
Decoding: pts of the first frame of the stream, in stream time base.
int error_recognition
Error recognition; higher values will detect more errors but may misdetect some more or less valid pa...
int ff_rm_retrieve_cache(AVFormatContext *s, AVIOContext *pb, AVStream *st, RMStream *ast, AVPacket *pkt)
Retrieve one cached packet from the rm-context.
static int rm_read_header_old(AVFormatContext *s)
#define MKBETAG(a, b, c, d)
#define AV_INPUT_BUFFER_PADDING_SIZE
Required number of additionally allocated bytes at the end of the input bitstream for decoding...
int eof_reached
true if eof reached
static int rm_read_packet(AVFormatContext *s, AVPacket *pkt)
static int rm_read_audio_stream_info(AVFormatContext *s, AVIOContext *pb, AVStream *st, RMStream *ast, int read_all)
void * priv_data
Format private data.
uint8_t * extradata
Extra binary data needed for initializing the decoder, codec-dependent.
int64_t audiotimestamp
Audio descrambling matrix parameters.
AVCodecParameters * codecpar
uint32_t codec_tag
Additional information about the codec (corresponds to the AVI FOURCC).
#define FFSWAP(type, a, b)
int videobufsize
current assembled frame size
#define AV_CH_LAYOUT_MONO
#define MKTAG(a, b, c, d)
enum AVDiscard discard
Selects which packets can be discarded at will and do not need to be demuxed.
int sub_packet_lengths[16]
Audio frame size from container.
This structure stores compressed data.
static void rm_read_metadata(AVFormatContext *s, AVIOContext *pb, int wide)
void * av_mallocz(size_t size)
Allocate a block of size bytes with alignment suitable for all memory accesses (including vectors if ...
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
#define AV_NOPTS_VALUE
Undefined timestamp value.