32 #define CODEC2_HEADER_SIZE 7 33 #define CODEC2_MAGIC 0xC0DEC2 37 #define EXPECTED_CODEC2_MAJOR_VERSION 0 38 #define EXPECTED_CODEC2_MINOR_VERSION 8 83 return frame_size_table[
mode];
106 return block_align_table[
mode];
117 if (frame_size <= 0 || block_align <= 0) {
193 if (block_align <= 0 || frame_size <= 0 || c2->frames_per_packet <= 0) {
206 n = ret / block_align;
243 av_log(s,
AV_LOG_ERROR,
"-mode must be set in order to make sense of raw codec2 files\n");
264 #define FRAMES_PER_PACKET \ 265 { "frames_per_packet", "Number of frames to read at a time. Higher = faster decoding, lower granularity", \ 266 offsetof(Codec2Context, frames_per_packet), AV_OPT_TYPE_INT, {.i64 = 1}, 1, INT_MAX, AV_OPT_FLAG_DECODING_PARAM} 302 #if CONFIG_CODEC2_DEMUXER 314 .priv_class = &codec2_demux_class,
318 #if CONFIG_CODEC2_MUXER 329 .priv_class = &codec2_mux_class,
333 #if CONFIG_CODEC2RAW_DEMUXER 343 .priv_class = &codec2raw_demux_class,
static const AVOption codec2raw_options[]
#define CODEC2_AVOPTIONS(desc, classname, min_val, default_val, option_flags)
static void write_packet(OutputFile *of, AVPacket *pkt, OutputStream *ost, int unqueue)
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
static const AVClass codec2_demux_class
#define LIBAVUTIL_VERSION_INT
int ffio_read_size(AVIOContext *s, unsigned char *buf, int size)
Read size bytes from AVIOContext into buf.
#define FRAMES_PER_PACKET
static int read_seek(AVFormatContext *ctx, int stream_index, int64_t timestamp, int flags)
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.
AVFormatInternal * internal
An opaque field for libavformat internal usage.
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 frame_size
Audio only.
const char * class_name
The name of the class; usually it is the same name as the context structure type to which the AVClass...
static void codec2_make_extradata(uint8_t *ptr, int mode)
int64_t duration
Duration of this packet in AVStream->time_base units, 0 if unknown.
AVStream * avformat_new_stream(AVFormatContext *s, const AVCodec *c)
Add a new stream to a media file.
AVStream ** streams
A list of all streams in the file.
void avio_write(AVIOContext *s, const unsigned char *buf, int size)
uint64_t channel_layout
Audio only.
int64_t bit_rate
The average bitrate of the encoded data (in bits per second).
static int codec2_read_packet(AVFormatContext *s, AVPacket *pkt)
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
static int codec2_mode_frame_size(AVFormatContext *s, int mode)
#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.
#define EXPECTED_CODEC2_MINOR_VERSION
static int codec2_mode_block_align(AVFormatContext *s, int mode)
int extradata_size
Size of the extradata content in bytes.
unsigned char * buf
Buffer must have AVPROBE_PADDING_SIZE of extra allocated bytes filled with zero.
unsigned int nb_streams
Number of elements in AVFormatContext.streams.
int block_align
Audio only.
unsigned int avio_rb24(AVIOContext *s)
void avio_wb24(AVIOContext *s, unsigned int val)
static int codec2_read_header_common(AVFormatContext *s, AVStream *st)
static int read_header(FFV1Context *f)
#define AVERROR_PATCHWELCOME
Not yet implemented in FFmpeg, patches welcome.
static int read_packet(void *opaque, uint8_t *buf, int buf_size)
#define EXPECTED_CODEC2_MAJOR_VERSION
static int codec2_probe(const AVProbeData *p)
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_RB24
static uint8_t codec2_mode_from_extradata(uint8_t *ptr)
AVIOContext * pb
I/O context.
#define CODEC2_HEADER_SIZE
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 codec2raw_read_header(AVFormatContext *s)
This structure contains the data a format has to probe a file.
static const AVClass codec2_mux_class
static const AVOption codec2_options[]
void avpriv_report_missing_feature(void *avc, const char *msg,...) av_printf_format(2
Log a generic warning message about a missing feature.
#define flags(name, subs,...)
int sample_rate
Audio only.
static int codec2_write_header(AVFormatContext *s)
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.
#define CODEC2_EXTRADATA_SIZE
AVCodecParameters * codecpar
Codec parameters associated with this stream.
static const AVClass codec2raw_demux_class
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).
static int codec2_mode_bit_rate(AVFormatContext *s, int mode)
static int codec2_read_header(AVFormatContext *s)