37 #define FORM_TAG MKTAG('F', 'O', 'R', 'M')
38 #define MOVE_TAG MKTAG('M', 'O', 'V', 'E')
39 #define PC__TAG MKTAG('_', 'P', 'C', '_')
40 #define SOND_TAG MKTAG('S', 'O', 'N', 'D')
41 #define BNAM_TAG MKTAG('B', 'N', 'A', 'M')
42 #define SIZE_TAG MKTAG('S', 'I', 'Z', 'E')
43 #define PALT_TAG MKTAG('P', 'A', 'L', 'T')
44 #define INDX_TAG MKTAG('I', 'N', 'D', 'X')
45 #define BRCH_TAG MKTAG('B', 'R', 'C', 'H')
46 #define SHOT_TAG MKTAG('S', 'H', 'O', 'T')
47 #define VGA__TAG MKTAG('V', 'G', 'A', ' ')
48 #define TEXT_TAG MKTAG('T', 'E', 'X', 'T')
49 #define AUDI_TAG MKTAG('A', 'U', 'D', 'I')
52 #define WC3_DEFAULT_WIDTH 320
53 #define WC3_DEFAULT_HEIGHT 165
56 #define WC3_SAMPLE_RATE 22050
57 #define WC3_AUDIO_CHANNELS 1
58 #define WC3_AUDIO_BITS 16
61 #define WC3_FRAME_FPS 15
63 #define PALETTE_SIZE (256 * 3)
101 unsigned int fourcc_tag;
125 switch (fourcc_tag) {
228 unsigned int fourcc_tag;
232 unsigned char text[1024];
234 while (!packet_read) {
242 switch (fourcc_tag) {
int64_t avio_seek(AVIOContext *s, int64_t offset, int whence)
fseek() equivalent for AVIOContext.
int avio_feof(AVIOContext *s)
Similar to feof() but also returns nonzero on read errors.
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)
static int read_packet(void *opaque, uint8_t *buf, int buf_size)
audio channel layout utility functions
static int read_header(FFV1Context *f)
#define AV_CH_LAYOUT_MONO
void av_packet_free(AVPacket **pkt)
Free the packet, if the packet is reference counted, it will be unreferenced first.
void av_packet_move_ref(AVPacket *dst, AVPacket *src)
Move every field in src to dst and reset src.
AVPacket * av_packet_alloc(void)
Allocate an AVPacket and set its fields to default values.
AVStream * avformat_new_stream(AVFormatContext *s, const AVCodec *c)
Add a new stream to a media file.
#define AV_DICT_DONT_STRDUP_VAL
Take ownership of a value that's been allocated with av_malloc() or another memory allocation functio...
int av_dict_set(AVDictionary **pm, const char *key, const char *value, int flags)
Set the given entry in *pm, overwriting an existing entry.
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
#define av_fourcc2str(fourcc)
size_t static size_t av_strnlen(const char *s, size_t len)
Get the count of continuous non zero chars starting from the beginning.
common internal API header
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
static av_cold int read_close(AVFormatContext *ctx)
uint64_t channel_layout
Audio only.
int bits_per_coded_sample
The number of bits per sample in the codedwords.
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.
int block_align
Audio only.
uint32_t codec_tag
Additional information about the codec (corresponds to the AVI FOURCC).
enum AVCodecID codec_id
Specific type of the encoded data (the codec used).
int sample_rate
Audio only.
This structure stores compressed data.
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
This structure contains the data a format has to probe a file.
int buf_size
Size of buf except extra allocated bytes.
unsigned char * buf
Buffer must have AVPROBE_PADDING_SIZE of extra allocated bytes filled with zero.
AVCodecParameters * codecpar
Codec parameters associated with this stream.
int index
stream index in AVFormatContext
#define WC3_AUDIO_CHANNELS
static int wc3_probe(const AVProbeData *p)
static int wc3_read_packet(AVFormatContext *s, AVPacket *pkt)
static int wc3_read_close(AVFormatContext *s)
static int wc3_read_header(AVFormatContext *s)
#define WC3_DEFAULT_WIDTH
#define WC3_DEFAULT_HEIGHT
AVInputFormat ff_wc3_demuxer