29 0x84, 0x10, 0xFF, 0xFF, 0xFF, 0xFF, 0x1E, 0x00
#define AV_LOG_WARNING
Something somehow does not look correct.
AVStream ** streams
A list of all streams in the file.
static const uint8_t header[24]
void avio_write(AVIOContext *s, const unsigned char *buf, int size)
#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. ...
enum AVMediaType codec_type
General type of the encoded data.
AVRational avg_frame_rate
Average framerate.
unsigned int nb_streams
Number of elements in AVFormatContext.streams.
AVOutputFormat ff_roq_muxer
AVIOContext * pb
I/O context.
AVCodecParameters * codecpar
Codec parameters associated with this stream.
static int roq_write_header(struct AVFormatContext *s)
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