57 for (i = 0; i < frag->
nb_units; i++) {
68 "incompatible with profiles 0 and 2.\n");
80 "implicitly sets color range to PC range.\n");
88 "profile 0 are automatically BT.601.\n");
124 #define OFFSET(x) offsetof(VP9MetadataContext, x) 125 #define FLAGS (AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_BSF_PARAM) 127 {
"color_space",
"Set colour space (section 7.2.2)",
145 {
"color_range",
"Set colour range (section 7.2.2)",
147 { .i64 = -1 }, -1, 1,
FLAGS,
"cr" },
149 { .i64 = 0 }, .flags =
FLAGS, .unit =
"cr" },
151 { .i64 = 1 }, .flags =
FLAGS, .unit =
"cr" },
168 .
name =
"vp9_metadata",
170 .priv_class = &vp9_metadata_class,
CodedBitstreamContext * cbc
int nb_units
Number of units in this fragment.
#define AV_LOG_WARNING
Something somehow does not look correct.
#define LIBAVUTIL_VERSION_INT
int ff_cbs_write_packet(CodedBitstreamContext *ctx, AVPacket *pkt, CodedBitstreamFragment *frag)
Write the bitstream of a fragment to a packet.
static av_cold int init(AVCodecContext *avctx)
int ff_cbs_init(CodedBitstreamContext **ctx_ptr, enum AVCodecID codec_id, void *log_ctx)
Create and initialise a new context for the given codec.
The bitstream filter state.
const char * av_default_item_name(void *ptr)
Return the context name.
void * priv_data
Opaque filter-specific private data.
const char * class_name
The name of the class; usually it is the same name as the context structure type to which the AVClass...
int ff_cbs_read_packet(CodedBitstreamContext *ctx, CodedBitstreamFragment *frag, const AVPacket *pkt)
Read the data bitstream from a packet into a fragment, then split into units and decompose.
void * content
Pointer to the decomposed form of this unit.
static const uint8_t header[24]
CodedBitstreamUnit * units
Pointer to an array of units of length nb_units_allocated.
void ff_cbs_fragment_reset(CodedBitstreamFragment *frag)
Free the units contained in a fragment as well as the fragment's own data buffer, but not the units a...
AVCodecID
Identify the syntax and semantics of the bitstream.
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
filter_frame For filters that do not use the this method is called when a frame is pushed to the filter s input It can be called at any time except in a reentrant way If the input frame is enough to produce then the filter should push the output frames on the output link immediately As an exception to the previous rule if the input frame is enough to produce several output frames then the filter needs output only at least one per link The additional frames can be left buffered in the filter
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several the filter must be ready for frames arriving randomly on any input any filter with several inputs will most likely require some kind of queuing mechanism It is perfectly acceptable to have a limited queue and to drop frames when the inputs are too unbalanced request_frame For filters that do not use the this method is called when a frame is wanted on an output For a it should directly call filter_frame on the corresponding output For a if there are queued frames already one of these frames should be pushed If the filter should request a frame on one of its repeatedly until at least one frame has been pushed Return or at least make progress towards producing a frame
CodedBitstreamFragment fragment
Coded bitstream fragment structure, combining one or more units.
void av_packet_unref(AVPacket *pkt)
Wipe the packet.
Describe the class of an AVClass context structure.
Context structure for coded bitstream operations.
void ff_cbs_close(CodedBitstreamContext **ctx_ptr)
Close a context and free all internal state.
common internal and external API header
static enum AVCodecID codec_ids[]
void ff_cbs_fragment_free(CodedBitstreamFragment *frag)
Free the units array of a fragment in addition to what ff_cbs_fragment_reset does.
This structure stores compressed data.
int ff_bsf_get_packet_ref(AVBSFContext *ctx, AVPacket *pkt)
Called by bitstream filters to get packet for filtering.