31 #define APE_MIN_VERSION 3800
32 #define APE_MAX_VERSION 3990
34 #define MAC_FORMAT_FLAG_8_BIT 1
35 #define MAC_FORMAT_FLAG_CRC 2
36 #define MAC_FORMAT_FLAG_HAS_PEAK_LEVEL 4
37 #define MAC_FORMAT_FLAG_24_BIT 8
38 #define MAC_FORMAT_FLAG_HAS_SEEK_ELEMENTS 16
39 #define MAC_FORMAT_FLAG_CREATE_WAV_HEADER 32
41 #define APE_EXTRADATA_SIZE 6
111 for (
i = 0;
i < 16;
i++)
152 int64_t final_size = 0;
153 int64_t
pts, file_size;
159 if (
tag !=
MKTAG(
'M',
'A',
'C',
' '))
250 "Number of seek entries is less than number of frames: %"SIZE_SPECIFIER" vs. %"PRIu32
"\n",
272 uint32_t seektable_entry =
avio_rl32(pb);
283 ff_dlog(
s,
"seektable: %8d %"PRIu32
"\n",
i, seektable_entry);
293 final_size -= final_size & 3;
295 if (file_size <= 0 || final_size <= 0)
383 uint32_t extra_size = 8;
465 .extensions =
"ape,apl,mac",
#define MAC_FORMAT_FLAG_8_BIT
#define MAC_FORMAT_FLAG_HAS_SEEK_ELEMENTS
AVInputFormat ff_ape_demuxer
#define MAC_FORMAT_FLAG_24_BIT
#define APE_EXTRADATA_SIZE
static int ape_probe(const AVProbeData *p)
#define MAC_FORMAT_FLAG_CREATE_WAV_HEADER
static int ape_read_packet(AVFormatContext *s, AVPacket *pkt)
static int ape_read_seek(AVFormatContext *s, int stream_index, int64_t timestamp, int flags)
static void ape_dumpinfo(AVFormatContext *s, APEContext *ape_ctx)
static int ape_read_header(AVFormatContext *s)
#define MAC_FORMAT_FLAG_HAS_PEAK_LEVEL
static int ape_read_close(AVFormatContext *s)
int64_t ff_ape_parse_tag(AVFormatContext *s)
Read and parse an APE tag.
int64_t avio_seek(AVIOContext *s, int64_t offset, int whence)
fseek() equivalent for AVIOContext.
#define AVIO_SEEKABLE_NORMAL
Seeking works like for a local file.
int64_t avio_size(AVIOContext *s)
Get the filesize.
int avio_feof(AVIOContext *s)
Similar to feof() but also returns nonzero on read errors.
static av_always_inline int64_t avio_tell(AVIOContext *s)
ftell() equivalent for AVIOContext.
unsigned int avio_rl16(AVIOContext *s)
int64_t avio_skip(AVIOContext *s, int64_t offset)
Skip given number of bytes forward.
int avio_read(AVIOContext *s, unsigned char *buf, int size)
Read size bytes from AVIOContext into buf.
unsigned int avio_rl32(AVIOContext *s)
int avio_r8(AVIOContext *s)
static int read_packet(void *opaque, uint8_t *buf, int buf_size)
#define flags(name, subs,...)
#define MKTAG(a, b, c, d)
static int read_header(FFV1Context *f)
int av_new_packet(AVPacket *pkt, int size)
Allocate the payload of a packet and initialize its fields with default values.
AVStream * avformat_new_stream(AVFormatContext *s, const AVCodec *c)
Add a new stream to a media file.
int av_add_index_entry(AVStream *st, int64_t pos, int64_t timestamp, int size, int distance, int flags)
Add an index entry into a sorted list.
int av_index_search_timestamp(AVStream *st, int64_t timestamp, int flags)
Get the index for a specific timestamp.
#define AVERROR_PATCHWELCOME
Not yet implemented in FFmpeg, patches welcome.
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
#define AVERROR_EOF
End of file.
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
#define AV_LOG_VERBOSE
Detailed information.
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
common internal API header
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
static av_cold int read_close(AVFormatContext *ctx)
static int read_seek(AVFormatContext *ctx, int stream_index, int64_t timestamp, int flags)
uint32_t descriptorlength
int fileversion
codec version, very important in decoding process
uint32_t audiodatalength_high
uint32_t finalframeblocks
int bits_per_coded_sample
The number of bits per sample in the codedwords.
enum AVMediaType codec_type
General type of the encoded data.
uint32_t codec_tag
Additional information about the codec (corresponds to the AVI FOURCC).
uint8_t * extradata
Extra binary data needed for initializing the decoder, codec-dependent.
enum AVCodecID codec_id
Specific type of the encoded data (the codec used).
int sample_rate
Audio only.
int seekable
A combination of AVIO_SEEKABLE_ flags or 0 when the stream is not seekable.
int eof_reached
true if was unable to read due to error or eof
This structure stores compressed data.
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
This structure contains the data a format has to probe a file.
unsigned char * buf
Buffer must have AVPROBE_PADDING_SIZE of extra allocated bytes filled with zero.
AVCodecParameters * codecpar
Codec parameters associated with this stream.
int64_t nb_frames
number of frames in this stream if known or 0
int64_t duration
Decoding: duration of the stream, in stream time base.
int64_t start_time
Decoding: pts of the first frame of the stream in presentation order, in stream time base.
AVIndexEntry * index_entries
Only used if the format does not support seeking natively.
#define av_malloc_array(a, b)