36 #define DEINT_ID_GENR MKTAG('g', 'e', 'n', 'r') 37 #define DEINT_ID_INT0 MKTAG('I', 'n', 't', '0')
38 #define DEINT_ID_INT4 MKTAG('I', 'n', 't', '4')
39 #define DEINT_ID_SIPR MKTAG('s', 'i', 'p', 'r')
40 #define DEINT_ID_VBRF MKTAG('v', 'b', 'r', 'f')
41 #define DEINT_ID_VBRS MKTAG('v', 'b', 'r', 's')
101 get_strl(pb, buf,
sizeof(buf), len);
134 unsigned bytes_per_minute;
141 if ((startpos + header_size) >=
avio_tell(pb) + 2) {
147 if ((startpos + header_size) >
avio_tell(pb))
149 if (bytes_per_minute)
159 int codecdata_length;
160 unsigned bytes_per_minute;
169 if (coded_framesize < 0)
176 if (bytes_per_minute)
220 codecdata_length = 0;
242 if(sub_packet_size <= 0){
261 if (codecdata_length >= 1) {
318 unsigned int codec_data_size,
const uint8_t *mime)
325 if (codec_data_size > INT_MAX)
327 if (codec_data_size == 0)
334 if (v ==
MKTAG(0xfd,
'a',
'r',
'.')) {
338 }
else if (v ==
MKBETAG(
'L',
'S',
'D',
':')) {
347 }
else if(mime && !strcmp(mime,
"logical-fileinfo")){
348 int stream_count, rule_count, property_count,
i;
359 for(i=0; i<property_count; i++){
401 0x10000, fps, (1 << 30) - 1);
402 #if FF_API_R_FRAME_RATE 414 if (codec_data_size >= size) {
428 unsigned int size, n_pkts, str_id, next_off, n,
pos,
pts;
448 "Invalid stream index %d for index at pos %"PRId64
"\n",
453 "Nr. of packets in packet index for stream index %d " 454 "exceeds filesize (%"PRId64
" at %"PRId64
" = %"PRId64
")\n",
460 for (n = 0; n < n_pkts; n++) {
472 if (next_off &&
avio_tell(pb) < next_off &&
475 "Non-linear index detected, not supported\n");
505 for (i = 0; i<number_of_streams; i++)
508 if (number_of_mdpr != 1) {
511 for (i = 0; i < number_of_mdpr; i++) {
519 st2->
id = st->
id + (i<<16);
547 unsigned int data_off = 0, indx_off = 0;
548 char buf[128], mime[128];
555 if (tag ==
MKTAG(
'.',
'r',
'a', 0xfd)) {
558 }
else if (tag !=
MKTAG(
'.',
'R',
'M',
'F')) {
574 if (tag_size < 10 && tag !=
MKTAG(
'D',
'A',
'T',
'A'))
577 case MKTAG(
'P',
'R',
'O',
'P'):
592 case MKTAG(
'C',
'O',
'N',
'T'):
595 case MKTAG(
'M',
'D',
'P',
'R'):
625 if (v ==
MKBETAG(
'M',
'L',
'T',
'I')) {
629 avio_seek(pb, codec_pos + size, SEEK_SET);
639 case MKTAG(
'D',
'A',
'T',
'A'):
657 avio_seek(pb, indx_off, SEEK_SET) >= 0) {
681 return (n << 16) | n1;
686 #define RAW_PACKET_SIZE 1000 692 uint32_t
state=0xFFFFFFFF;
705 state= (state<<8) +
avio_r8(pb);
707 if(state ==
MKBETAG(
'I',
'N',
'D',
'X')){
709 int64_t expected_len;
713 expected_len = 20 + n_pkts * 14LL;
715 if (len == 20 && expected_len <= INT_MAX)
718 else if (len != expected_len)
720 "Index size %d (%d pkts) is wrong, should be %"PRId64
".\n",
721 len, n_pkts, expected_len);
726 }
else if (state ==
MKBETAG(
'D',
'A',
'T',
'A')) {
728 "DATA tag in middle of chunk, file may be broken.\n");
731 if(state > (
unsigned)0xFFFF || state <= 12)
738 mlti_id = (
avio_r8(pb) >> 1) - 1;
739 mlti_id =
FFMAX(mlti_id, 0) << 16;
744 if (mlti_id + num == st->
id)
767 int seq = 0, pic_num = 0, len2 = 0,
pos = 0;
805 return ret < 0 ? ret :
AVERROR(EIO);
812 if((seq & 0x7F) == 1 || vst->
curpic_num != pic_num){
817 vst->
slices = ((hdr & 0x3F) << 1) + 1;
871 for (j=0;j<pkt->
size;j+=2) {
872 FFSWAP(
int, ptr[0], ptr[1]);
881 if (ret >= 0) memset(dst + ret, 0, n - ret);
882 else memset(dst , 0, n);
891 int *seq,
int flags, int64_t timestamp)
900 return ret < 0 ? ret : -1;
919 for (x = 0; x < h/2; x++)
923 for (x = 0; x < w/
sps; x++)
969 pkt->
pts = timestamp;
1013 int i,
len, res, seq = 1;
1014 int64_t timestamp,
pos;
1034 flags = (seq++ == 1) ? 2 : 0;
1037 len =
rm_sync(s, ×tamp, &flags, &i, &pos);
1048 &seq, flags, timestamp);
1051 if((flags&2) && (seq&0x7F) == 1)
1080 if ((p->
buf[0] ==
'.' && p->
buf[1] ==
'R' &&
1081 p->
buf[2] ==
'M' && p->
buf[3] ==
'F' &&
1082 p->
buf[4] == 0 && p->
buf[5] == 0) ||
1083 (p->
buf[0] ==
'.' && p->
buf[1] ==
'r' &&
1084 p->
buf[2] ==
'a' && p->
buf[3] == 0xfd))
1091 int64_t *ppos, int64_t pos_limit)
1110 len =
rm_sync(s, &dts, &flags, &stream_index2, &pos);
1114 st = s->
streams[stream_index2];
1122 if((flags&2) && (seq&0x7F) == 1){
1124 flags, stream_index2, stream_index, dts, seq);
1126 if(stream_index2 == stream_index)
1170 if (memcmp(p->
buf,
".R1M\x0\x1\x1", 7) &&
1171 memcmp(p->
buf,
".REC", 4))
1188 if (tag ==
MKTAG(
'.',
'R',
'1',
'M')) {
1215 if (tag !=
MKTAG(
'.',
'R',
'E',
'C'))
1221 for (i = 0; i <
count; i++) {
1232 }
else if (type == 4) {
1234 for (j = 0; j <
len; j++) {
1240 }
else if (len == 4 && type == 3 && !strncmp(key,
"StreamCount", tlen)) {
1242 }
else if (len == 4 && type == 3) {
1263 for (i = 0; i <
count; i++) {
1274 }
else if (type == 4 && !strncmp(key,
"OpaqueData", tlen)) {
1289 }
else if (type == 4) {
1293 for (j = 0; j <
len; j++) {
1299 }
else if (len == 4 && type == 3 && !strncmp(key,
"Duration", tlen)) {
1301 }
else if (len == 4 && type == 3) {
1385 }
else if (opcode == 7) {
1411 .extensions =
"ivr",
static int ivr_read_packet(AVFormatContext *s, AVPacket *pkt)
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.
static int rm_read_multi(AVFormatContext *s, AVIOContext *pb, AVStream *st, char *mime)
#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
void av_shrink_packet(AVPacket *pkt, int size)
Reduce packet size, correctly zeroing padding.
#define avpriv_request_sample(...)
static int read_seek(AVFormatContext *ctx, int stream_index, int64_t timestamp, int flags)
enum AVCodecID codec_id
Specific type of the encoded data (the codec used).
int index
stream index in AVFormatContext
int64_t avio_seek(AVIOContext *s, int64_t offset, int whence)
fseek() equivalent for AVIOContext.
static int rm_probe(const AVProbeData *p)
int64_t avio_skip(AVIOContext *s, int64_t offset)
Skip given number of bytes forward.
#define FF_ARRAY_ELEMS(a)
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
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.
#define av_assert0(cond)
assert() equivalent, that is always enabled.
int ffio_limit(AVIOContext *s, int size)
static int64_t start_time
Opaque data information usually continuous.
static int ivr_probe(const AVProbeData *p)
#define AV_LOG_TRACE
Extremely verbose debugging, useful for libav* development.
unsigned int avio_rb32(AVIOContext *s)
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf offset
int id
Format-specific stream ID.
enum AVStreamParseType need_parsing
GLsizei GLboolean const GLfloat * value
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.
void av_packet_move_ref(AVPacket *dst, AVPacket *src)
Move every field in src to dst and reset src.
#define AVERROR_EOF
End of file.
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...
uint64_t avio_rb64(AVIOContext *s)
static av_always_inline int64_t avio_tell(AVIOContext *s)
ftell() equivalent for AVIOContext.
int av_reduce(int *dst_num, int *dst_den, int64_t num, int64_t den, int64_t max)
Reduce a fraction.
#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.
int64_t bit_rate
The average bitrate of the encoded data (in bits per second).
#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.
#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. ...
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
#define av_fourcc2str(fourcc)
enum AVMediaType codec_type
General type of the encoded data.
simple assert() macros that are a bit more flexible than ISO C assert().
#define DEINT_ID_VBRF
VBR case for AAC.
static int rm_sync(AVFormatContext *s, int64_t *timestamp, int *flags, int *stream_index, int64_t *pos)
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)
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
int64_t av_rescale(int64_t a, int64_t b, int64_t c)
Rescale a 64-bit integer with rounding to nearest.
#define AV_TIME_BASE
Internal time base represented as integer.
static int readfull(AVFormatContext *s, AVIOContext *pb, uint8_t *dst, int n)
AVInputFormat ff_rm_demuxer
#define DEINT_ID_INT4
interleaving for 28.8
#define AV_EF_EXPLODE
abort decoding on minor error detection
AVInputFormat ff_ivr_demuxer
static int rm_read_seek(AVFormatContext *s, int stream_index, int64_t pts, int flags)
int coded_framesize
Descrambling parameters from container.
static int read_header(FFV1Context *f)
static int read_packet(void *opaque, uint8_t *buf, int buf_size)
static void rm_ac3_swap_bytes(AVStream *st, AVPacket *pkt)
#define AVIO_SEEKABLE_NORMAL
Seeking works like for a local file.
const AVCodecTag ff_rm_codec_tags[]
static int rm_read_extradata(AVFormatContext *s, AVIOContext *pb, AVCodecParameters *par, unsigned size)
#define DEINT_ID_SIPR
interleaving for Sipro
AVIOContext * pb
I/O context.
void av_packet_unref(AVPacket *pkt)
Wipe the packet.
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.
int ff_rm_read_mdpr_codecdata(AVFormatContext *s, AVIOContext *pb, AVStream *st, RMStream *rst, unsigned int codec_data_size, const uint8_t *mime)
Read the MDPR chunk, which contains stream-specific codec initialization parameters.
static int FUNC() sps(CodedBitstreamContext *ctx, RWContext *rw, H264RawSPS *current)
This structure contains the data a format has to probe a file.
int audio_pkt_cnt
Output packet counter.
#define flags(name, subs,...)
const char *const ff_rm_metadata[4]
AVInputFormat ff_rdt_demuxer
void ff_rm_free_rmstream(RMStream *rms)
int ffio_ensure_seekback(AVIOContext *s, int64_t buf_size)
Ensures that the requested seekback buffer size will be available.
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 presentation order, 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...
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 duration
Duration of the stream, in AV_TIME_BASE fractional seconds.
int64_t audiotimestamp
Audio descrambling matrix parameters.
AVCodecParameters * codecpar
Codec parameters associated with this stream.
int avio_get_str(AVIOContext *pb, int maxlen, char *buf, int buflen)
Read a string from pb into buf.
int avio_feof(AVIOContext *s)
Similar to feof() but also returns nonzero on read errors.
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
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later.That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another.Frame references ownership and permissions
#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.
AVRational r_frame_rate
Real base framerate of the stream.
int sub_packet_lengths[16]
Audio frame size from container.
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_RL32
static double val(void *priv, double ch)
This structure stores compressed data.
static void rm_read_metadata(AVFormatContext *s, AVIOContext *pb, int wide)
static int ivr_read_header(AVFormatContext *s)
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.