38 #define QCP_MAX_MODE 4
48 0x6d, 0x7f, 0x5e, 0x15, 0xb1, 0xd0, 0x11, 0xba,
49 0x91, 0x00, 0x80, 0x5f, 0xb4, 0xb9, 0x7e
56 0x8d, 0xd4, 0x89, 0xe6, 0x76, 0x90, 0xb5, 0x46,
57 0x91, 0xef, 0x73, 0x6a, 0x51, 0x00, 0xce, 0xb4
61 0xca, 0x29, 0xfd, 0x3c, 0x53, 0xf6, 0xf5, 0x4e,
62 0x90, 0xe9, 0xf4, 0x23, 0x6d, 0x59, 0x9b, 0x61
69 0x75, 0x2b, 0x7c, 0x8d, 0x97, 0xa7, 0x49, 0xed,
70 0x98, 0x5e, 0xd5, 0x3c, 0x8c, 0xc7, 0x5f, 0x84
78 return (guid[0] == 0x41 || guid[0] == 0x42)
111 }
else if (!memcmp(buf,
guid_evrc, 16)) {
113 }
else if (!memcmp(buf,
guid_smv, 16)) {
115 }
else if (!memcmp(buf,
guid_4gv, 16)) {
130 memset(
c->rates_per_mode, -1,
sizeof(
c->rates_per_mode));
132 nb_rates =
FFMIN(nb_rates, 8);
133 for (
i=0;
i<nb_rates;
i++) {
150 unsigned int chunk_size,
tag;
156 if (
s->packet_size) {
157 pkt_size =
s->packet_size - 1;
163 if (
c->data_size <= pkt_size) {
165 pkt_size =
c->data_size - 1;
172 c->data_size -= pkt_size + 1;
183 case MKTAG(
'v',
'r',
'a',
't'):
188 case MKTAG(
'd',
'a',
't',
'a'):
189 c->data_size = chunk_size;
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)
unsigned int avio_rb32(AVIOContext *s)
int avio_r8(AVIOContext *s)
static int read_packet(void *opaque, uint8_t *buf, int buf_size)
audio channel layout utility functions
#define MKTAG(a, b, c, d)
mode
Use these values in ebur128_init (or'ed).
static int read_header(FFV1Context *f)
#define AV_CH_LAYOUT_MONO
AVStream * avformat_new_stream(AVFormatContext *s, const AVCodec *c)
Add a new stream to a media file.
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
#define AVERROR_EOF
End of file.
#define AV_LOG_WARNING
Something somehow does not look correct.
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
static const uint8_t guid_smv[16]
SMV GUID as stored in the file.
static int is_qcelp_13k_guid(const uint8_t *guid)
static int qcp_probe(const AVProbeData *pd)
static const uint8_t guid_qcelp_13k_part[15]
Last 15 out of 16 bytes of QCELP-13K GUID, as stored in the file; the first byte of the GUID can be e...
static int qcp_read_header(AVFormatContext *s)
AVInputFormat ff_qcp_demuxer
static const uint8_t guid_4gv[16]
static const uint8_t guid_evrc[16]
EVRC GUID as stored in the file.
static int qcp_read_packet(AVFormatContext *s, AVPacket *pkt)
internal header for RIFF based (de)muxers do NOT include this in end user applications
uint64_t channel_layout
Audio only.
int64_t bit_rate
The average bitrate of the encoded data (in bits per second).
enum AVMediaType codec_type
General type of the encoded data.
enum AVCodecID codec_id
Specific type of the encoded data (the codec used).
int sample_rate
Audio only.
This structure stores compressed data.
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.
int16_t rates_per_mode[QCP_MAX_MODE+1]
contains the packet size corresponding to each mode, -1 if no size.
uint32_t data_size
size of data chunk