28 #define MVI_FRAC_BITS 10 30 #define MVI_AUDIO_STREAM_INDEX 0 31 #define MVI_VIDEO_STREAM_INDEX 1 47 unsigned int version, frames_count, msecs_per_frame, player_version;
79 if (version != 7 || player_version > 213) {
102 "Invalid audio_data_size (%"PRIu32
") or frames_count (%u)\n",
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
AVInputFormat ff_mvi_demuxer
#define MVI_AUDIO_STREAM_INDEX
enum AVCodecID codec_id
Specific type of the encoded data (the codec used).
AVStream * avformat_new_stream(AVFormatContext *s, const AVCodec *c)
Add a new stream to a media file.
uint64_t channel_layout
Audio only.
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.
unsigned int avio_rl32(AVIOContext *s)
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
enum AVMediaType codec_type
General type of the encoded data.
unsigned int(* get_int)(AVIOContext *)
AVRational avg_frame_rate
Average framerate.
int avio_r8(AVIOContext *s)
audio channel layout utility functions
uint64_t audio_size_counter
#define MVI_VIDEO_STREAM_INDEX
uint64_t audio_frame_size
AVIOContext * pb
I/O context.
static av_always_inline AVRational av_inv_q(AVRational q)
Invert a rational.
int sample_rate
Audio only.
static int read_header(AVFormatContext *s)
unsigned int avio_rl16(AVIOContext *s)
void * priv_data
Format private data.
int bits_per_coded_sample
The number of bits per sample in the codedwords.
uint8_t * extradata
Extra binary data needed for initializing the decoder, codec-dependent.
AVCodecParameters * codecpar
Codec parameters associated with this stream.
unsigned int avio_rl24(AVIOContext *s)
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented...
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later.That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another.Frame references ownership and permissions
#define AV_CH_LAYOUT_MONO
This structure stores compressed data.
static int read_packet(AVFormatContext *s, AVPacket *pkt)