30 #ifndef LIBILBC_VERSION_MAJOR 31 #define LIBILBC_VERSION_MAJOR 2 41 return avctx->
bit_rate <= 14000 ? 30 : 20;
48 #if LIBILBC_VERSION_MAJOR < 3 92 int buf_size = avpkt->
size;
97 if (s->
decoder.no_of_bytes > buf_size) {
98 #if LIBILBC_VERSION_MAJOR < 3 104 buf_size, s->
decoder.no_of_bytes);
112 WebRtcIlbcfix_DecodeImpl((int16_t *) frame->
data[0], (
const uint16_t *) buf, &s->
decoder, 1);
128 .priv_class = &ilbc_dec_class,
133 #if LIBILBC_VERSION_MAJOR < 3 189 WebRtcIlbcfix_EncodeImpl((uint16_t *) avpkt->
data, (
const int16_t *) frame->
data[0], &s->
encoder);
213 .wrapper_name =
"libbilbc",
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
This structure describes decoded (raw) audio or video data.
ptrdiff_t const GLvoid * data
static int ilbc_decode_frame(AVCodecContext *avctx, void *data, int *got_frame_ptr, AVPacket *avpkt)
int64_t bit_rate
the average bitrate
#define LIBAVUTIL_VERSION_INT
static av_cold int init(AVCodecContext *avctx)
static av_cold int ilbc_decode_init(AVCodecContext *avctx)
#define AV_OPT_FLAG_AUDIO_PARAM
const char * av_default_item_name(void *ptr)
Return the context name.
#define AV_CODEC_CAP_CHANNEL_CONF
Codec should fill in channel configuration and samplerate instead of container.
static int get_mode(AVCodecContext *avctx)
int block_align
number of bytes per packet if constant and known or 0 Used by some WAV based audio codecs...
static void decode(AVCodecContext *dec_ctx, AVPacket *pkt, AVFrame *frame, FILE *outfile)
static const AVClass ilbc_dec_class
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_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int64_t size, int64_t min_size)
Check AVPacket size and/or allocate data.
enum AVSampleFormat sample_fmt
audio sample format
AVCodec ff_libilbc_decoder
static av_cold int ilbc_encode_init(AVCodecContext *avctx)
static const AVCodecDefault ilbc_encode_defaults[]
#define AV_OPT_FLAG_ENCODING_PARAM
a generic parameter which can be set by the user for muxing or encoding
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
const char * name
Name of the codec implementation.
uint64_t channel_layout
Audio channel layout.
static const AVClass ilbc_enc_class
audio channel layout utility functions
AVCodec ff_libilbc_encoder
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
int frame_size
Number of samples per channel in an audio frame.
static int ilbc_encode_frame(AVCodecContext *avctx, AVPacket *avpkt, const AVFrame *frame, int *got_packet_ptr)
Libavcodec external API header.
AVSampleFormat
Audio sample formats.
int sample_rate
samples per second
main external API structure.
int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
Get a buffer for a frame.
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
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
common internal api header.
common internal and external API header
int channels
number of audio channels
static const AVOption ilbc_enc_options[]
static enum AVSampleFormat sample_fmts[]
static const AVOption ilbc_dec_options[]
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 AV_CH_LAYOUT_MONO
This structure stores compressed data.
mode
Use these values in ebur128_init (or'ed).
int nb_samples
number of audio samples (per channel) described by this frame
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() or get_encode_buffer() for allocating buffers and supports custom allocators...