28 #define PP_BNK_MAX_READ_SIZE 4096 29 #define PP_BNK_FILE_HEADER_SIZE 20 30 #define PP_BNK_TRACK_SIZE 20 90 if (track_count == 0 || track_count > INT_MAX)
93 if ((sample_rate != 5512) && (sample_rate != 11025) &&
94 (sample_rate != 22050) && (sample_rate != 44100))
183 "Track %d has truncated data, assuming track count == %d\n",
186 }
else if (ret < 0) {
260 }
else if (ret < 0) {
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
#define AV_LOG_WARNING
Something somehow does not look correct.
#define avpriv_request_sample(...)
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.
AVInputFormat ff_pp_bnk_demuxer
This struct describes the properties of an encoded stream.
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.
#define AVERROR_EOF
End of file.
static av_cold int read_close(AVFormatContext *ctx)
static av_always_inline int64_t avio_tell(AVIOContext *s)
ftell() equivalent for AVIOContext.
uint64_t channel_layout
Audio only.
int avio_read(AVIOContext *s, unsigned char *buf, int size)
Read size bytes from AVIOContext into buf.
int64_t bit_rate
The average bitrate of the encoded data (in bits per second).
static int pp_bnk_probe(const AVProbeData *p)
#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.
simple assert() macros that are a bit more flexible than ISO C assert().
static int pp_bnk_read_close(AVFormatContext *s)
int flags
A combination of AV_PKT_FLAG values.
#define PP_BNK_MAX_READ_SIZE
unsigned char * buf
Buffer must have AVPROBE_PADDING_SIZE of extra allocated bytes filled with zero.
common internal API header
static void pp_bnk_parse_track(PPBnkTrack *trk, const uint8_t *buf)
int block_align
Audio only.
#define PP_BNK_TRACK_SIZE
static int read_header(FFV1Context *f)
#define PP_BNK_FILE_HEADER_SIZE
#define AVERROR_PATCHWELCOME
Not yet implemented in FFmpeg, patches welcome.
static int read_packet(void *opaque, uint8_t *buf, int buf_size)
static int pp_bnk_read_header(AVFormatContext *s)
AVIOContext * pb
I/O context.
static int pp_bnk_read_packet(AVFormatContext *s, AVPacket *pkt)
This structure contains the data a format has to probe a file.
int bits_per_raw_sample
This is the number of valid bits in each output sample.
int64_t duration
Decoding: duration of the stream, in stream time base.
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...
#define AV_PKT_FLAG_CORRUPT
The packet content is corrupted.
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.
#define av_malloc_array(a, b)
static void pp_bnk_parse_header(PPBnkHeader *hdr, const uint8_t *buf)
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
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_RL32
This structure stores compressed data.