49 int packing_scheme, has_payload_desc, has_packet_info, alen,
81 if ((packing_scheme =
get_bits(&gb, 2)) == 0)
88 if (has_payload_desc) {
89 int data_len,
pos, is_start, is_finish;
99 if (!is_start || !is_finish) {
101 "split over several packets");
110 tag !=
MKTAG(
'v',
'i',
'd',
'e')) ||
112 tag !=
MKTAG(
's',
'o',
'u',
'n')))
116 if (pos + data_len > len)
119 while (
avio_tell(&pb) + 4 < pos + data_len) {
122 if (
avio_tell(&pb) + tlv_len > pos + data_len)
125 #define MKTAG16(a,b) MKTAG(a,b,0,0) 163 if (has_packet_info) {
172 switch (packing_scheme) {
192 if (has_marker_bit) {
243 #define RTP_QT_HANDLER(m, n, s, t) \ 244 const RTPDynamicProtocolHandler ff_ ## m ## _rtp_ ## n ## _handler = { \ 247 .codec_id = AV_CODEC_ID_NONE, \ 248 .priv_data_size = sizeof(PayloadContext), \ 249 .close = qt_rtp_close, \ 250 .parse_packet = qt_rtp_parse_packet, \
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
void * av_realloc(void *ptr, size_t size)
Allocate, reallocate, or free a block of memory.
static unsigned int get_bits(GetBitContext *s, int n)
Read 1-25 bits.
RTP/JPEG specific private data.
#define avpriv_request_sample(...)
static int qt_rtp_parse_packet(AVFormatContext *s, PayloadContext *qt, AVStream *st, AVPacket *pkt, uint32_t *timestamp, const uint8_t *buf, int len, uint16_t seq, int flags)
int index
stream index in AVFormatContext
int64_t avio_seek(AVIOContext *s, int64_t offset, int whence)
fseek() equivalent for AVIOContext.
int64_t avio_skip(AVIOContext *s, int64_t offset)
Skip given number of bytes forward.
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
unsigned int avio_rb16(AVIOContext *s)
unsigned int avio_rb32(AVIOContext *s)
int av_packet_from_data(AVPacket *pkt, uint8_t *data, int size)
Initialize a reference-counted packet from av_malloc()ed data.
static int get_bits_count(const GetBitContext *s)
bitstream reader API header.
static av_always_inline int64_t avio_tell(AVIOContext *s)
ftell() equivalent for AVIOContext.
#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.
uint32_t timestamp
current frame timestamp
#define RTP_FLAG_MARKER
RTP marker bit was set for this packet.
unsigned int avio_rl32(AVIOContext *s)
enum AVMediaType codec_type
General type of the encoded data.
int flags
A combination of AV_PKT_FLAG values.
unsigned int nb_streams
Number of elements in AVFormatContext.streams.
static void qt_rtp_close(PayloadContext *qt)
#define RTP_QT_HANDLER(m, n, s, t)
#define AVERROR_PATCHWELCOME
Not yet implemented in FFmpeg, patches welcome.
int av_reallocp(void *ptr, size_t size)
Allocate, reallocate, or free a block of memory through a pointer to a pointer.
void av_packet_unref(AVPacket *pkt)
Wipe the packet.
static unsigned int get_bits1(GetBitContext *s)
static int FUNC() aud(CodedBitstreamContext *ctx, RWContext *rw, H264RawAUD *current)
static void skip_bits(GetBitContext *s, int n)
static int init_get_bits(GetBitContext *s, const uint8_t *buffer, int bit_size)
Initialize GetBitContext.
uint8_t * buf
the temporary storage buffer
int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries)
#define flags(name, subs,...)
unsigned int avio_rl16(AVIOContext *s)
unsigned int bytes_per_frame
int ffio_init_context(AVIOContext *s, unsigned char *buffer, int buffer_size, int write_flag, void *opaque, int(*read_packet)(void *opaque, uint8_t *buf, int buf_size), int(*write_packet)(void *opaque, uint8_t *buf, int buf_size), int64_t(*seek)(void *opaque, int64_t offset, int whence))
void av_init_packet(AVPacket *pkt)
Initialize optional fields of a packet with default values.
#define AV_INPUT_BUFFER_PADDING_SIZE
Required number of additionally allocated bytes at the end of the input bitstream for decoding...
AVCodecParameters * codecpar
Codec parameters associated with this stream.
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 MKTAG(a, b, c, d)
This structure stores compressed data.