47 const unsigned char *buf = p->
buf;
59 length = (length << 7) | (c & 0x7F);
61 if (c & 0x80 || length > 1024 || length < 21)
65 if (memcmp(buf,
"Version:Vivo/", 13))
69 if (*buf < '0' || *buf >
'2')
79 unsigned c, get_length = 0;
94 case 0: get_length = 1;
break;
95 case 1: vivo->
length = 128;
break;
96 case 2: get_length = 1;
break;
97 case 3: vivo->
length = 40;
break;
98 case 4: vivo->
length = 24;
break;
147 if (vivo->
length <= 1024) {
158 line_end = strstr(line,
"\r\n");
169 value = strchr(key,
':');
180 value_int = strtol(value, &end_value, 10);
182 if (*end_value == 0) {
185 if (!strcmp(key,
"Duration")) {
186 duration = value_int;
187 }
else if (!strcmp(key,
"Width")) {
189 }
else if (!strcmp(key,
"Height")) {
191 }
else if (!strcmp(key,
"TimeUnitNumerator")) {
192 fps.
num = value_int / 1000;
193 }
else if (!strcmp(key,
"TimeUnitDenominator")) {
195 }
else if (!strcmp(key,
"SamplingFrequency")) {
197 }
else if (!strcmp(key,
"NominalBitrate")) {
198 }
else if (!strcmp(key,
"Length")) {
205 if (!strcmp(key,
"Version")) {
206 if (sscanf(value,
"Vivo/%d.", &vivo->
version) != 1)
209 }
else if (!strcmp(key,
"FPS")) {
261 unsigned old_sequence = vivo->
sequence, old_type = vivo->
type;
262 int stream_index,
duration, ret = 0;
269 switch (vivo->
type) {
297 while (vivo->
sequence == old_sequence &&
298 (((vivo->
type - 1) >> 1) == ((old_type - 1) >> 1))) {
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
#define AV_LOG_WARNING
Something somehow does not look correct.
enum AVCodecID codec_id
Specific type of the encoded data (the codec used).
int64_t avio_skip(AVIOContext *s, int64_t offset)
Skip given number of bytes forward.
static int vivo_read_header(AVFormatContext *s)
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.
AVInputFormat ff_vivo_demuxer
#define AVERROR_EOF
End of file.
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).
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
AVDictionary * metadata
Metadata that applies to the whole file.
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
enum AVMediaType codec_type
General type of the encoded data.
int av_sscanf(const char *string, const char *format,...)
See libc sscanf manual for more information.
int avio_r8(AVIOContext *s)
unsigned char * buf
Buffer must have AVPROBE_PADDING_SIZE of extra allocated bytes filled with zero.
static int vivo_get_packet_header(AVFormatContext *s)
int block_align
Audio only.
int64_t av_rescale(int64_t a, int64_t b, int64_t c)
Rescale a 64-bit integer with rounding to nearest.
static int vivo_probe(const AVProbeData *p)
static int read_header(FFV1Context *f)
static int read_packet(void *opaque, uint8_t *buf, int buf_size)
static int vivo_read_packet(AVFormatContext *s, AVPacket *pkt)
AVIOContext * pb
I/O context.
int av_dict_set(AVDictionary **pm, const char *key, const char *value, int flags)
Set the given entry in *pm, overwriting an existing entry.
Rational number (pair of numerator and denominator).
This structure contains the data a format has to probe a file.
AVRational av_d2q(double d, int max)
Convert a double precision floating point number to a rational.
static av_always_inline AVRational av_inv_q(AVRational q)
Invert a rational.
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...
void * priv_data
Format private data.
int bits_per_coded_sample
The number of bits per sample in the codedwords.
int64_t duration
Duration of the stream, in AV_TIME_BASE fractional seconds.
AVCodecParameters * codecpar
Codec parameters associated with this stream.
int avio_feof(AVIOContext *s)
Similar to feof() but also returns nonzero on read errors.
uint32_t codec_tag
Additional information about the codec (corresponds to the AVI FOURCC).
This structure stores compressed data.