30 { 0, 0, 0, 0, 0, 0, 0, 0 }, { 2, 0, 0, 0, 0, 0, 0, 0 },
31 { 5, 7, 0, 0, 0, 0, 0, 0 }, { 5, 0, 0, 0, 0, 0, 0, 0 },
32 { 6, 0, 0, 0, 0, 0, 0, 0 }, { 5, 7, 5, 7, 0, 0, 0, 0 },
33 { 5, 7, 5, 0, 0, 0, 0, 0 }, { 5, 7, 6, 0, 0, 0, 0, 0 },
34 { 5, 5, 0, 0, 0, 0, 0, 0 }, { 3, 0, 0, 0, 0, 0, 0, 0 },
35 { 6, 6, 0, 0, 0, 0, 0, 0 }, { 2, 4, 0, 0, 0, 0, 0, 0 },
36 { 2, 4, 5, 7, 0, 0, 0, 0 }, { 2, 4, 5, 0, 0, 0, 0, 0 },
37 { 2, 4, 6, 0, 0, 0, 0, 0 }, { 2, 4, 5, 7, 5, 7, 0, 0 },
62 for (i = 0; i < 4; i++)
78 "width %d and height %d must be multiplie of 4.\n",
91 for (i = 0; i < 4; i++) {
106 for (i = 0; i < 4; i++) {
116 for (i = 0; i < 4; i++) {
117 if (mask & (1 << 7 - i))
119 if (mask & (1 << 3 - i))
120 dst[width + i] =
color;
128 for (i = 0; i < 4; i++) {
129 if (mask & (1 << 7 - i))
131 if (mask & (1 << 3 - i))
132 dst[width + i] = src[width + i];
140 int val = bytestream2_get_be16(&c->
gb);
141 int page = val >> 14;
142 int x = (val & 0x7F);
143 int y = ((val >> 7) & 0x7F);
145 *p = c->
frame[page] + x * 2 + y * 2 * c->
width;
151 uint32_t opcode_size, offset;
156 i = bytestream2_get_byte(&c->
gb);
165 val = bytestream2_get_be16(&c->
gb);
167 x = (val & 0x7F) * 2;
168 y = ((val >> 7) & 0x7F) * 2;
171 offset = (x & 0x7F) * 2;
172 j = bytestream2_get_le16(&c->
gb) + offset;
175 if (dst + 3 * c->
width + 4 > dend)
178 if ((offset & 0x3F) == 0)
181 }
while (offset < j);
189 if ((src + 3 * c->
width + 4 > send) ||
190 (dst + 3 * c->
width + 4 > dend))
199 opcode_size = bytestream2_get_le16(&c->
gb);
210 for (i = 0; i < c->
height; i += 4, dst += c->
width * 3)
211 for (j = 0; j < c->
width; j += 4, dst += 4) {
213 if (op > opcode_size)
216 opcode = opcodes[
op] & 15;
219 opcode = opcodes[
op] >> 4;
223 offset = c->
width * 2;
230 color = bytestream2_get_byte(&c->
gb);
232 mask = bytestream2_get_byte(&c->
gb);
240 if (src + offset + c->
width + 4 > send)
242 mask = bytestream2_get_byte(&c->
gb);
264 code = bytestream2_get_byte(&c->
gb);
266 for (i = 0; i < 4; i++)
282 index = bytestream2_get_byte(&c->
gb);
283 count = bytestream2_get_byte(&c->
gb) + 1;
285 if (index + count > 256)
291 for (i = 0; i < count; i++) {
294 r = bytestream2_get_byteu(&c->
gb);
296 g = bytestream2_get_byteu(&c->
gb);
298 b = bytestream2_get_byteu(&c->
gb);
300 *out++ = (0xFF
U << 24) | (r << 16) | (g << 8) | b;
305 switch (code & 0x0F) {
326 frame = bytestream2_get_byte(&c->
gb);
346 code = bytestream2_get_byteu(&c->
gb);
347 count =
FFABS(code) + 1;
349 if (dst + count > end)
352 memset(dst, bytestream2_get_byteu(&c->
gb), count);
static av_cold int paf_video_close(AVCodecContext *avctx)
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
This structure describes decoded (raw) audio or video data.
av_log(ac->avr, AV_LOG_TRACE, "%d samples - audio_convert: %s to %s (%s)\, len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt), use_generic ? ac->func_descr_generic :ac->func_descr)
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
static av_always_inline void bytestream2_init(GetByteContext *g, const uint8_t *buf, int buf_size)
static av_always_inline unsigned int bytestream2_get_bufferu(GetByteContext *g, uint8_t *dst, unsigned int size)
void av_freep(void *arg)
Free a memory block which has been allocated with av_malloc(z)() or av_realloc() and set the pointer ...
void void avpriv_request_sample(void *avc, const char *msg,...) av_printf_format(2
Log a generic warning message about a missing feature.
AVFrame * av_frame_alloc(void)
Allocate an AVFrame and set its fields to default values.
8 bits with AV_PIX_FMT_RGB32 palette
int av_frame_ref(AVFrame *dst, const AVFrame *src)
Set up a new reference to the data described by the source frame.
static av_always_inline void bytestream2_skipu(GetByteContext *g, unsigned int size)
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
static const uint16_t mask[17]
static av_always_inline void bytestream2_skip(GetByteContext *g, unsigned int size)
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
static av_always_inline unsigned int bytestream2_get_buffer(GetByteContext *g, uint8_t *dst, unsigned int size)
static int paf_video_decode(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *pkt)
static av_always_inline unsigned int bytestream2_get_bytes_left(GetByteContext *g)
const char * name
Name of the codec implementation.
int ff_reget_buffer(AVCodecContext *avctx, AVFrame *frame)
Identical in function to av_frame_make_writable(), except it uses ff_get_buffer() to allocate the buf...
enum AVPictureType pict_type
Picture type of the frame.
static const uint8_t block_sequences[16][8]
int width
picture width / height.
static int decode(AVCodecContext *avctx, AVFrame *frame, int *got_frame, AVPacket *pkt)
static void set_src_position(PAFVideoDecContext *c, const uint8_t **p, const uint8_t **pend)
static av_always_inline int bytestream2_tell(GetByteContext *g)
Libavcodec external API header.
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
main external API structure.
AVCodec ff_paf_video_decoder
static const uint8_t color[NB_LEVELS]
int palette_has_changed
Tell user application that palette has changed from previous frame.
static void copy_src_mask(uint8_t *dst, int width, uint8_t mask, const uint8_t *src)
static av_cold int paf_video_init(AVCodecContext *avctx)
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
static void copy_color_mask(uint8_t *dst, int width, uint8_t mask, uint8_t color)
static int op(uint8_t **dst, const uint8_t *dst_end, GetByteContext *gb, int pixel, int count, int *x, int width, int linesize)
Perform decode operation.
common internal api header.
static av_cold int init(AVCodecParserContext *s)
static void copy_block4(uint8_t *dst, const uint8_t *src, int dstStride, int srcStride, int h)
int key_frame
1 -> keyframe, 0-> not
void av_image_copy_plane(uint8_t *dst, int dst_linesize, const uint8_t *src, int src_linesize, int bytewidth, int height)
Copy image plane from src to dst.
static void read4x4block(PAFVideoDecContext *c, uint8_t *dst, int width)
static int decode_0(PAFVideoDecContext *c, uint8_t *pkt, uint8_t code)
This structure stores compressed data.
void * av_mallocz(size_t size)
Allocate a block of size bytes with alignment suitable for all memory accesses (including vectors if ...
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.