22 #include "libavutil/channel_layout.h"
36 static const int mmf_rates[] = { 4000, 8000, 11025, 22050, 44100 };
40 if ((code < 0) || (code > 4))
46 static int mmf_rate_code(
int rate)
49 for (i = 0; i < 5; i++)
78 av_log(s,
AV_LOG_ERROR,
"Unsupported sample rate %d, supported are 4000, 8000, 11025, 22050 and 44100\n",
87 "add '-strict %d' if you want to use it.\n",
120 avio_write(pb,
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16);
152 end_tag_be(pb, mmf->
awapos);
153 end_tag_be(pb, mmf->
atrpos);
166 put_varlength(pb, gatetime);
169 put_varlength(pb, gatetime);
186 if (p->
buf[0] ==
'M' && p->
buf[1] ==
'M' &&
187 p->
buf[2] ==
'M' && p->
buf[3] ==
'D' &&
188 p->
buf[8] ==
'C' && p->
buf[9] ==
'N' &&
189 p->
buf[10] ==
'T' && p->
buf[11] ==
'I')
206 if (tag !=
MKTAG(
'M',
'M',
'M',
'D'))
214 if (tag ==
MKTAG(
'C',
'N',
'T',
'I'))
216 if (tag ==
MKTAG(
'O',
'P',
'D',
'A'))
222 if ((tag & 0xffffff) ==
MKTAG(
'M',
'T',
'R', 0)) {
226 if ((tag & 0xffffff) !=
MKTAG(
'A',
'T',
'R', 0)) {
247 if (tag ==
MKTAG(
'A',
't',
's',
'q'))
249 if (tag ==
MKTAG(
'A',
's',
'p',
'I'))
255 if ((tag & 0xffffff) !=
MKTAG(
'A',
'w',
'a', 0)) {
279 #define MAX_SIZE 4096
301 #if CONFIG_MMF_DEMUXER
317 .mime_type =
"application/vnd.smaf",
const char const char void * val
#define AVERROR_PATCHWELCOME
int64_t ff_start_tag(AVIOContext *pb, const char *tag)
AVCodecContext * codec
Codec context associated with this stream.
void av_log(void *avcl, int level, const char *fmt,...) av_printf_format(3
Send the specified message to the log if the level is less than or equal to the current av_log_level...
#define AV_CH_LAYOUT_STEREO
static int mmf_probe(AVProbeData *p)
static int mmf_rate(int code)
unsigned char * buf
Buffer must have AVPROBE_PADDING_SIZE of extra allocated bytes filled with zero.
#define CODEC_FLAG_BITEXACT
Use only bitexact stuff (except (I)DCT).
int bits_per_coded_sample
bits per sample/pixel from the demuxer (needed for huffyuv).
AVStream * avformat_new_stream(AVFormatContext *s, const AVCodec *c)
Add a new stream to a media file.
static av_always_inline void ffio_wfourcc(AVIOContext *pb, const uint8_t *s)
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
void * priv_data
Format private data.
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
uint64_t channel_layout
Audio channel layout.
int seekable
A combination of AVIO_SEEKABLE_ flags or 0 when the stream is not seekable.
int bit_rate
the average bitrate
static int write_trailer(AVFormatContext *s1)
internal header for RIFF based (de)muxers do NOT include this in end user applications ...
#define FF_COMPLIANCE_EXPERIMENTAL
Allow nonstandardized experimental things.
static int read_header(FFV1Context *f)
enum AVMediaType codec_type
int sample_rate
samples per second
AVIOContext * pb
I/O context.
static int read_packet(AVFormatContext *ctx, AVPacket *pkt)
#define MKTAG(a, b, c, d)
static int mmf_read_header(AVFormatContext *s)
This structure contains the data a format has to probe a file.
static const int mmf_rates[]
const char const char * params
static int mmf_read_packet(AVFormatContext *s, AVPacket *pkt)
#define AVERROR_INVALIDDATA
int channels
number of audio channels
static void write_header(FFV1Context *f)
#define AV_CH_LAYOUT_MONO
This structure stores compressed data.
static int write_packet(AVFormatContext *s1, AVPacket *pkt)
int strict_std_compliance
strictly follow the standard (MPEG4, ...).