39 if (!memcmp(p->
buf,
"RIFF", 4) && !memcmp(p->
buf + 8,
"XWMA", 4))
48 uint32_t dpds_table_size = 0;
49 uint32_t *dpds_table =
NULL;
62 if (tag !=
MKTAG(
'R',
'I',
'F',
'F'))
66 if (tag !=
MKTAG(
'X',
'W',
'M',
'A'))
71 if (tag !=
MKTAG(
'f',
'm',
't',
' '))
139 if (tag ==
MKTAG(
'd',
'a',
't',
'a')) {
142 }
else if (tag ==
MKTAG(
'd',
'p',
'd',
's')) {
163 "dpds chunk size %"PRId64
" not divisible by 4\n", size);
165 dpds_table_size = size / 4;
166 if (dpds_table_size == 0 || dpds_table_size >= INT_MAX / 4) {
168 "dpds chunk size %"PRId64
" invalid\n", size);
180 for (i = 0; i < dpds_table_size; ++i) {
199 if (dpds_table && dpds_table_size) {
201 const uint32_t bytes_per_sample
205 const uint64_t total_decoded_bytes = dpds_table[dpds_table_size - 1];
207 if (!bytes_per_sample) {
209 "Invalid bits_per_coded_sample %d for %d channels\n",
215 st->
duration = total_decoded_bytes / bytes_per_sample;
227 for (i = 0; i < dpds_table_size; ++i) {
234 dpds_table[i] / bytes_per_sample,
269 size =
FFMIN(size, left);
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
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.
#define AV_LOG_WARNING
Something somehow does not look correct.
static int xwma_read_packet(AVFormatContext *s, AVPacket *pkt)
int64_t avio_skip(AVIOContext *s, int64_t offset)
Skip given number of bytes forward.
int ff_get_wav_header(AVIOContext *pb, AVCodecContext *codec, int size, int big_endian)
int block_align
number of bytes per packet if constant and known or 0 Used by some WAV based audio codecs...
void void avpriv_request_sample(void *avc, const char *msg,...) av_printf_format(2
Log a generic warning message about a missing feature.
enum AVStreamParseType need_parsing
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
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.
#define AVERROR_EOF
End of file.
static av_always_inline int64_t avio_tell(AVIOContext *s)
ftell() equivalent for AVIOContext.
int bits_per_coded_sample
bits per sample/pixel from the demuxer (needed for huffyuv).
static int xwma_read_header(AVFormatContext *s)
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
AVInputFormat ff_xwma_demuxer
unsigned int avio_rl32(AVIOContext *s)
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
static int xwma_probe(AVProbeData *p)
AVCodecContext * codec
Codec context associated with this stream.
unsigned char * buf
Buffer must have AVPROBE_PADDING_SIZE of extra allocated bytes filled with zero.
int bit_rate
the average bitrate
internal header for RIFF based (de)muxers do NOT include this in end user applications ...
static int read_header(FFV1Context *f)
static int read_packet(void *opaque, uint8_t *buf, int buf_size)
int sample_rate
samples per second
AVIOContext * pb
I/O context.
unsigned int codec_tag
fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
This structure contains the data a format has to probe a file.
int64_t duration
Decoding: duration of the stream, in stream time base.
int eof_reached
true if eof reached
int channels
number of audio channels
void * priv_data
Format private data.
#define av_malloc_array(a, b)
#define MKTAG(a, b, c, d)
This structure stores compressed data.