28 #define RTP_VC2HQ_PL_HEADER_SIZE 4 30 #define DIRAC_DATA_UNIT_HEADER_SIZE 13 31 #define DIRAC_PIC_NR_SIZE 4 32 #define DIRAC_RTP_PCODE_HQ_PIC_FRAGMENT 0xEC 46 uint8_t parse_code, uint32_t data_unit_size)
50 AV_WB32(&buf[5], data_unit_size);
112 av_log(ctx,
AV_LOG_WARNING,
"Dropping buffered RTP/VC2hq packet fragments - non-continuous picture numbers\n");
117 if (no_slices == 0) {
118 if (len < frag_len + 16) {
145 if (len < frag_len + 20) {
185 av_log(ctx,
AV_LOG_WARNING,
"Dropping buffered RTP/VC2hq packet fragments - non-continuous timestamps\n");
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
#define DIRAC_PIC_NR_SIZE
#define AV_LOG_WARNING
Something somehow does not look correct.
RTP/JPEG specific private data.
int index
stream index in AVFormatContext
int64_t avio_seek(AVIOContext *s, int64_t offset, int whence)
fseek() equivalent for AVIOContext.
#define RTP_VC2HQ_PL_HEADER_SIZE
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_WL32 unsigned int_TMPL AV_WL24 unsigned int_TMPL AV_WL16 uint64_t_TMPL AV_WB64 unsigned int_TMPL AV_WB32 unsigned int_TMPL AV_WB24 unsigned int_TMPL AV_RB16
int avio_open_dyn_buf(AVIOContext **s)
Open a write only memory stream.
Interface to Dirac Decoder/Encoder.
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_WL32 unsigned int_TMPL AV_WL24 unsigned int_TMPL AV_WL16 uint64_t_TMPL AV_WB64 unsigned int_TMPL AV_RB32
static int vc2hq_handle_frame_fragment(AVFormatContext *ctx, PayloadContext *pl_ctx, AVStream *st, AVPacket *pkt, uint32_t *timestamp, const uint8_t *buf, int len, int flags)
#define DIRAC_RTP_PCODE_HQ_PIC_FRAGMENT
void avio_write(AVIOContext *s, const unsigned char *buf, int size)
static int vc2hq_handle_packet(AVFormatContext *ctx, PayloadContext *pl_ctx, AVStream *st, AVPacket *pkt, uint32_t *timestamp, const uint8_t *buf, int len, uint16_t seq, int flags)
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 AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
#define RTP_FLAG_MARKER
RTP marker bit was set for this packet.
static void fill_parse_info_header(PayloadContext *pl_ctx, uint8_t *buf, uint8_t parse_code, uint32_t data_unit_size)
static const uint8_t start_sequence[]
void ffio_free_dyn_buf(AVIOContext **s)
Free a dynamic buffer.
uint8_t * buf
the temporary storage buffer
#define flags(name, subs,...)
static int vc2hq_handle_sequence_header(PayloadContext *pl_ctx, AVStream *st, AVPacket *pkt, const uint8_t *buf, int len)
#define DIRAC_DATA_UNIT_HEADER_SIZE
int ff_rtp_finalize_packet(AVPacket *pkt, AVIOContext **dyn_buf, int stream_idx)
Close the dynamic buffer and make a packet from it.
static int vc2hq_mark_end_of_sequence(PayloadContext *pl_ctx, AVStream *st, AVPacket *pkt)
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
const RTPDynamicProtocolHandler ff_vc2hq_dynamic_handler
This structure stores compressed data.