29 #define HNM4_TAG MKTAG('H', 'N', 'M', '4')
31 #define HNM4_SAMPLE_RATE 22050
32 #define HNM4_FRAME_FPS 24
34 #define HNM4_CHUNK_ID_PL 19536
35 #define HNM4_CHUNK_ID_IZ 23113
36 #define HNM4_CHUNK_ID_IU 21833
37 #define HNM4_CHUNK_ID_SD 17491
73 if (width < 256 || width > 640 ||
74 height < 150 || height > 480) {
107 uint32_t superchunk_size, chunk_size;
128 "invalid chunk size: %"PRIu32
", offset: %"PRId64
"\n",
int64_t avio_seek(AVIOContext *s, int64_t offset, int whence)
fseek() equivalent for AVIOContext.
static av_always_inline int64_t avio_tell(AVIOContext *s)
ftell() equivalent for AVIOContext.
unsigned int avio_rl16(AVIOContext *s)
int64_t avio_skip(AVIOContext *s, int64_t offset)
Skip given number of bytes forward.
unsigned int avio_rl32(AVIOContext *s)
unsigned int avio_rl24(AVIOContext *s)
static int read_packet(void *opaque, uint8_t *buf, int buf_size)
#define flags(name, subs,...)
static int read_header(FFV1Context *f)
AVStream * avformat_new_stream(AVFormatContext *s, const AVCodec *c)
Add a new stream to a media file.
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
#define AVERROR_EOF
End of file.
#define AV_LOG_WARNING
Something somehow does not look correct.
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
static int hnm_read_packet(AVFormatContext *s, AVPacket *pkt)
static int hnm_probe(const AVProbeData *p)
static int hnm_read_header(AVFormatContext *s)
AVInputFormat ff_hnm_demuxer
common internal API header
#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.
uint32_t codec_tag
Additional information about the codec (corresponds to the AVI FOURCC).
uint8_t * extradata
Extra binary data needed for initializing the decoder, codec-dependent.
enum AVCodecID codec_id
Specific type of the encoded data (the codec used).
int eof_reached
true if was unable to read due to error or eof
This structure stores compressed data.
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.
int64_t start_time
Decoding: pts of the first frame of the stream in presentation order, in stream time base.
uint32_t superchunk_remaining