32 #define ADTS_HEADER_SIZE 7 47 #define ADTS_MAX_FRAME_BYTES ((1 << 13) - 1) 173 int side_data_size,
ret;
177 if (side_data_size) {
184 memcpy(par->
extradata, side_data, side_data_size);
213 #define ENC AV_OPT_FLAG_ENCODING_PARAM 214 #define OFFSET(obj) offsetof(ADTSContext, obj) 232 .mime_type =
"audio/aac",
233 .extensions =
"aac,adts",
241 .priv_class = &adts_muxer_class,
uint8_t pce_data[MAX_PCE_SIZE]
static void write_packet(OutputFile *of, AVPacket *pkt, OutputStream *ost, int unqueue)
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
int ff_id3v2_write_simple(struct AVFormatContext *s, int id3v2_version, const char *magic)
Write an ID3v2 tag containing all global metadata from s.
static void put_bits(Jpeg2000EncoderContext *s, int val, int n)
put n times val bit
static unsigned int get_bits(GetBitContext *s, int n)
Read 1-25 bits.
#define LIBAVUTIL_VERSION_INT
static void skip_bits_long(GetBitContext *s, int n)
Skips the specified number of bits.
static av_cold int init(AVCodecContext *avctx)
static int adts_init(AVFormatContext *s)
enum AVCodecID codec_id
Specific type of the encoded data (the codec used).
#define ID3v2_DEFAULT_MAGIC
Default magic bytes for ID3v2 header: "ID3".
const char * av_default_item_name(void *ptr)
Return the context name.
static int adts_decode_extradata(AVFormatContext *s, ADTSContext *adts, const uint8_t *buf, int size)
#define ADTS_MAX_FRAME_BYTES
This struct describes the properties of an encoded stream.
static int adts_write_packet(AVFormatContext *s, AVPacket *pkt)
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 avpriv_mpeg4audio_get_config2(MPEG4AudioConfig *c, const uint8_t *buf, int size, int sync_extension, void *logctx)
Parse MPEG-4 systems extradata from a raw buffer to retrieve audio configuration. ...
static const AVOption options[]
static int adts_write_header(AVFormatContext *s)
AVStream ** streams
A list of all streams in the file.
bitstream reader API header.
void avio_write(AVIOContext *s, const unsigned char *buf, int size)
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
uint8_t * av_packet_get_side_data(const AVPacket *pkt, enum AVPacketSideDataType type, int *size)
Get side information from packet.
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
int extradata_size
Size of the extradata content in bytes.
static int write_trailer(AVFormatContext *s1)
The AV_PKT_DATA_NEW_EXTRADATA is used to notify the codec or the format that the extradata buffer was...
Libavcodec external API header.
AVIOContext * pb
I/O context.
int ff_ape_write_tag(AVFormatContext *s)
Write an APE tag into a file.
Describe the class of an AVClass context structure.
static int ff_copy_pce_data(PutBitContext *pb, GetBitContext *gb)
static int init_get_bits(GetBitContext *s, const uint8_t *buffer, int bit_size)
Initialize GetBitContext.
#define flags(name, subs,...)
static const AVClass adts_muxer_class
static void flush_put_bits(PutBitContext *s)
Pad the end of the output stream with zeros.
static int adts_write_frame_header(ADTSContext *ctx, uint8_t *buf, int size, int pce_size)
static void init_put_bits(PutBitContext *s, uint8_t *buffer, int buffer_size)
Initialize the PutBitContext s.
#define MAX_PCE_SIZE
Maximum size of a PCE including the 3-bit ID_PCE.
void * priv_data
Format private data.
static void write_header(FFV1Context *f)
uint8_t * extradata
Extra binary data needed for initializing the decoder, codec-dependent.
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.
AVOutputFormat ff_adts_muxer
static int adts_write_trailer(AVFormatContext *s)