26 #define CHUNK_SIZE 512 27 #define RIFF_TAG MKTAG('R','I','F','F') 28 #define WAVE_TAG MKTAG('W','A','V','E') 56 for(i=264; i<512; i++)
202 .long_name =
"ACT Voice file format",
AVInputFormat ff_act_demuxer
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
static int read_packet(AVFormatContext *s, AVPacket *pkt)
enum AVCodecID codec_id
Specific type of the encoded data (the codec used).
int64_t avio_seek(AVIOContext *s, int64_t offset, int whence)
fseek() equivalent for AVIOContext.
int64_t avio_skip(AVIOContext *s, int64_t offset)
Skip given number of bytes forward.
uint8_t audio_buffer[22]
temporary buffer for ACT frame
int frame_size
Audio only.
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.
bitstream reader API header.
int avio_read(AVIOContext *s, unsigned char *buf, int size)
Read size bytes from AVIOContext into buf.
int ff_get_wav_header(AVFormatContext *s, AVIOContext *pb, AVCodecParameters *par, int size, int big_endian)
int av_new_packet(AVPacket *pkt, int size)
Allocate the payload of a packet and initialize its fields with default values.
#define i(width, name, range_min, range_max)
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
unsigned int avio_rl32(AVIOContext *s)
int avio_r8(AVIOContext *s)
int buf_size
Size of buf except extra allocated bytes.
unsigned char * buf
Buffer must have AVPROBE_PADDING_SIZE of extra allocated bytes filled with zero.
int64_t av_rescale(int64_t a, int64_t b, int64_t c)
Rescale a 64-bit integer with rounding to nearest.
internal header for RIFF based (de)muxers do NOT include this in end user applications ...
AVIOContext * pb
I/O context.
This structure contains the data a format has to probe a file.
static int read_header(AVFormatContext *s)
int64_t duration
Decoding: duration of the stream, in stream time base.
static int probe(const AVProbeData *p)
int sample_rate
Audio only.
unsigned int avio_rl16(AVIOContext *s)
void * priv_data
Format private data.
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
char second_packet
1 - if temporary buffer contains valid (second) G.729 packet
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_RL32
This structure stores compressed data.