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;
153 const uint8_t *src, *send, *opcodes;
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))
197 }
while (i < c->video_size / 16);
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.
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 ...
static int decode(MimicContext *ctx, int quality, int num_coeffs, int is_iframe)
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 bit with 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.
#define CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.
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)
void av_log(void *avcl, int level, const char *fmt,...)
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 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.
static void close(AVCodecParserContext *s)
AVCodec ff_paf_video_decoder
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)
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(constint16_t *) pi >>8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(constint32_t *) pi >>24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(constfloat *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(constfloat *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(constfloat *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(constdouble *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(constdouble *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(constdouble *) pi *(1U<< 31))))#defineSET_CONV_FUNC_GROUP(ofmt, ifmt) staticvoidset_generic_function(AudioConvert *ac){}voidff_audio_convert_free(AudioConvert **ac){if(!*ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);}AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enumAVSampleFormatout_fmt, enumAVSampleFormatin_fmt, intchannels, intsample_rate, intapply_map){AudioConvert *ac;intin_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) returnNULL;ac->avr=avr;ac->out_fmt=out_fmt;ac->in_fmt=in_fmt;ac->channels=channels;ac->apply_map=apply_map;if(avr->dither_method!=AV_RESAMPLE_DITHER_NONE &&av_get_packed_sample_fmt(out_fmt)==AV_SAMPLE_FMT_S16 &&av_get_bytes_per_sample(in_fmt)>2){ac->dc=ff_dither_alloc(avr, out_fmt, in_fmt, channels, sample_rate, apply_map);if(!ac->dc){av_free(ac);returnNULL;}returnac;}in_planar=ff_sample_fmt_is_planar(in_fmt, channels);out_planar=ff_sample_fmt_is_planar(out_fmt, channels);if(in_planar==out_planar){ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar?ac->channels:1;}elseif(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;elseac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);if(ARCH_AARCH64) ff_audio_convert_init_aarch64(ac);if(ARCH_ARM) ff_audio_convert_init_arm(ac);if(ARCH_X86) ff_audio_convert_init_x86(ac);returnac;}intff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in){intuse_generic=1;intlen=in->nb_samples;intp;if(ac->dc){av_dlog(ac->avr,"%dsamples-audio_convert:%sto%s(dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));returnff_convert_dither(ac-> out
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 const uint8_t color[]
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 ...