34 #define SMACKER_PAL 0x01 35 #define SMACKER_FLAG_RING_FRAME 0x01 66 0x00, 0x04, 0x08, 0x0C, 0x10, 0x14, 0x18, 0x1C,
67 0x20, 0x24, 0x28, 0x2C, 0x30, 0x34, 0x38, 0x3C,
68 0x41, 0x45, 0x49, 0x4D, 0x51, 0x55, 0x59, 0x5D,
69 0x61, 0x65, 0x69, 0x6D, 0x71, 0x75, 0x79, 0x7D,
70 0x82, 0x86, 0x8A, 0x8E, 0x92, 0x96, 0x9A, 0x9E,
71 0xA2, 0xA6, 0xAA, 0xAE, 0xB2, 0xB6, 0xBA, 0xBE,
72 0xC3, 0xC7, 0xCB, 0xCF, 0xD3, 0xD7, 0xDB, 0xDF,
73 0xE3, 0xE7, 0xEB, 0xEF, 0xF3, 0xF7, 0xFB, 0xFF
101 if (magic !=
MKTAG(
'S',
'M',
'K',
'2') && magic !=
MKTAG(
'S',
'M',
'K',
'4'))
107 if (pts_inc > INT_MAX / 100 || pts_inc == INT_MIN) {
115 if (smk->
frames > 0xFFFFFF) {
123 if (treesize >= UINT_MAX/4) {
140 av_reduce(&tbase, &pts_inc, tbase, pts_inc, (1UL << 31) - 1);
155 "Cannot allocate %"PRIu32
" bytes of extradata\n",
163 for (i = 0; i < 7; i++) {
217 for (i = 0; i < smk->
frames; i++) {
220 for (i = 0; i < smk->
frames; i++) {
262 memcpy(oldpal, pal, 768);
265 if(size + 1 > frame_size)
274 sz += (t & 0x7F) + 1;
275 pal += ((t & 0x7F) + 1) * 3;
279 if (off + j > 0x100) {
281 "Invalid palette update, offset=%d length=%d extends beyond palette size\n",
286 while(j-- && sz < 256) {
287 *pal++ = oldpal[off + 0];
288 *pal++ = oldpal[off + 1];
289 *pal++ = oldpal[off + 2];
306 for(i = 0; i < 7; i++) {
312 if (!size || size + 4LL > frame_size) {
331 if (frame_size < 0 || frame_size >= INT_MAX/2)
337 pkt->
data[0] = palchange;
338 memcpy(pkt->
data + 1, smk->
pal, 768);
340 if(ret != frame_size)
344 pkt->
size = ret + 769;
368 for(i = 0; i < 7; i++)
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
int ffio_read_size(AVIOContext *s, unsigned char *buf, int size)
Read size bytes from AVIOContext into buf.
enum AVCodecID codec_id
Specific type of the encoded data (the codec used).
int index
stream index in AVFormatContext
int64_t avio_seek(AVIOContext *s, int64_t offset, int whence)
fseek() equivalent for AVIOContext.
int64_t avio_skip(AVIOContext *s, int64_t offset)
Skip given number of bytes forward.
#define AV_CH_LAYOUT_STEREO
This struct describes the properties of an encoded stream.
8 bits with AV_PIX_FMT_RGB32 palette
AVStream * avformat_new_stream(AVFormatContext *s, const AVCodec *c)
Add a new stream to a media file.
#define AVERROR_EOF
End of file.
static av_cold int read_close(AVFormatContext *ctx)
static av_always_inline int64_t avio_tell(AVIOContext *s)
ftell() equivalent for AVIOContext.
int av_reduce(int *dst_num, int *dst_den, int64_t num, int64_t den, int64_t max)
Reduce a fraction.
uint64_t channel_layout
Audio only.
int avio_read(AVIOContext *s, unsigned char *buf, int size)
Read size bytes from AVIOContext into buf.
int av_new_packet(AVPacket *pkt, int size)
Allocate the payload of a packet and initialize its fields with default values.
#define i(width, name, range_min, range_max)
#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.
int extradata_size
Size of the extradata content in bytes.
int avio_r8(AVIOContext *s)
unsigned char * buf
Buffer must have AVPROBE_PADDING_SIZE of extra allocated bytes filled with zero.
audio channel layout utility functions
static int read_header(FFV1Context *f)
static int read_packet(void *opaque, uint8_t *buf, int buf_size)
int av_reallocp(void *ptr, size_t size)
Allocate, reallocate, or free a block of memory through a pointer to a pointer.
AVIOContext * pb
I/O context.
This structure contains the data a format has to probe a file.
#define flags(name, subs,...)
int64_t duration
Decoding: duration of the stream, in stream time base.
int sample_rate
Audio only.
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.
#define av_malloc_array(a, b)
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).
unsigned int avio_rl24(AVIOContext *s)
#define AV_CH_LAYOUT_MONO
#define MKTAG(a, b, c, d)
This structure stores compressed data.
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...