26 #define APTX_BLOCK_SIZE 4 27 #define APTX_PACKET_SIZE (256*APTX_BLOCK_SIZE) 29 #define APTX_HD_BLOCK_SIZE 6 30 #define APTX_HD_PACKET_SIZE (256*APTX_HD_BLOCK_SIZE) 90 #if CONFIG_APTX_DEMUXER 91 static const AVClass aptx_demuxer_class = {
101 .extensions =
"aptx",
106 .priv_class = &aptx_demuxer_class,
110 #if CONFIG_APTX_HD_DEMUXER 111 static const AVClass aptx_hd_demuxer_class = {
121 .extensions =
"aptxhd",
126 .priv_class = &aptx_hd_demuxer_class,
#define LIBAVUTIL_VERSION_INT
enum AVCodecID codec_id
Specific type of the encoded data (the codec used).
const char * av_default_item_name(void *ptr)
Return the context name.
static const AVOption aptx_options[]
#define APTX_HD_BLOCK_SIZE
static AVStream * aptx_read_header_common(AVFormatContext *s)
int frame_size
Audio only.
#define APTX_HD_PACKET_SIZE
const char * class_name
The name of the class; usually it is the same name as the context structure type to which the AVClass...
AVStream * avformat_new_stream(AVFormatContext *s, const AVCodec *c)
Add a new stream to a media file.
#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.
int block_align
Audio only.
static int aptx_read_packet(AVFormatContext *s, AVPacket *pkt)
static int aptx_hd_read_packet(AVFormatContext *s, AVPacket *pkt)
static int read_header(FFV1Context *f)
static int read_packet(void *opaque, uint8_t *buf, int buf_size)
AVIOContext * pb
I/O context.
Describe the class of an AVClass context structure.
#define AV_OPT_FLAG_DECODING_PARAM
a generic parameter which can be set by the user for demuxing or decoding
static int aptx_read_header(AVFormatContext *s)
#define flags(name, subs,...)
int sample_rate
Audio only.
int64_t start_time
Decoding: pts of the first frame of the stream in presentation order, in stream time base...
static int aptx_hd_read_header(AVFormatContext *s)
void * priv_data
Format private data.
int bits_per_coded_sample
The number of bits per sample in the codedwords.
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
This structure stores compressed data.