38 #define ZMBV_KEYFRAME 1
39 #define ZMBV_DELTAPAL 2
86 int d, dx, dy, bw2, bh2;
95 for (i = 0; i < 768; i++)
100 src += ((c->
bx * c->
by * 2 + 3) & ~3);
103 for (y = 0; y < c->
height; y += c->
bh) {
105 for (x = 0; x < c->
width; x += c->
bw) {
109 dx = mvec[
block] >> 1;
110 dy = mvec[block + 1] >> 1;
117 tprev = prev + x + dx + dy * c->
width;
120 for (j = 0; j < bh2; j++) {
121 if (my + j < 0 || my + j >= c->
height) {
124 for (i = 0; i < bw2; i++) {
125 if (mx + i < 0 || mx + i >= c->
width)
137 for (j = 0; j < bh2; j++) {
138 for (i = 0; i < bw2; i++)
160 uint16_t *output, *
prev;
163 int d, dx, dy, bw2, bh2;
168 output = (uint16_t*)c->
cur;
169 prev = (uint16_t*)c->
prev;
172 src += ((c->
bx * c->
by * 2 + 3) & ~3);
175 for (y = 0; y < c->
height; y += c->
bh) {
177 for (x = 0; x < c->
width; x += c->
bw) {
178 uint16_t *
out, *tprev;
181 dx = mvec[
block] >> 1;
182 dy = mvec[block + 1] >> 1;
189 tprev = prev + x + dx + dy * c->
width;
192 for (j = 0; j < bh2; j++) {
193 if (my + j < 0 || my + j >= c->
height) {
194 memset(out, 0, bw2 * 2);
196 for (i = 0; i < bw2; i++) {
197 if (mx + i < 0 || mx + i >= c->
width)
209 for (j = 0; j < bh2; j++){
210 for (i = 0; i < bw2; i++) {
211 out[i] ^= *((uint16_t*)src);
227 #ifdef ZMBV_ENABLE_24BPP
238 int d, dx, dy, bw2, bh2;
247 stride = c->
width * 3;
249 src += ((c->
bx * c->
by * 2 + 3) & ~3);
252 for (y = 0; y < c->
height; y += c->
bh) {
254 for (x = 0; x < c->
width; x += c->
bw) {
258 dx = mvec[
block] >> 1;
259 dy = mvec[block + 1] >> 1;
265 out = output + x * 3;
266 tprev = prev + (x + dx) * 3 + dy * stride;
269 for (j = 0; j < bh2; j++) {
270 if (my + j < 0 || my + j >= c->
height) {
271 memset(out, 0, bw2 * 3);
273 for (i = 0; i < bw2; i++){
274 if (mx + i < 0 || mx + i >= c->
width) {
279 out[i * 3 + 0] = tprev[i * 3 + 0];
280 out[i * 3 + 1] = tprev[i * 3 + 1];
281 out[i * 3 + 2] = tprev[i * 3 + 2];
290 out = output + x * 3;
291 for (j = 0; j < bh2; j++) {
292 for (i = 0; i < bw2; i++) {
293 out[i * 3 + 0] ^= *src++;
294 out[i * 3 + 1] ^= *src++;
295 out[i * 3 + 2] ^= *src++;
301 output += stride * c->
bh;
302 prev += stride * c->
bh;
309 #endif //ZMBV_ENABLE_24BPP
318 uint32_t *output, *
prev;
321 int d, dx, dy, bw2, bh2;
326 output = (uint32_t*)c->
cur;
327 prev = (uint32_t*)c->
prev;
330 src += ((c->
bx * c->
by * 2 + 3) & ~3);
333 for (y = 0; y < c->
height; y += c->
bh) {
335 for (x = 0; x < c->
width; x += c->
bw) {
336 uint32_t *
out, *tprev;
339 dx = mvec[
block] >> 1;
340 dy = mvec[block + 1] >> 1;
347 tprev = prev + x + dx + dy * c->
width;
350 for (j = 0; j < bh2; j++) {
351 if (my + j < 0 || my + j >= c->
height) {
352 memset(out, 0, bw2 * 4);
354 for (i = 0; i < bw2; i++){
355 if (mx + i < 0 || mx + i >= c->
width)
367 for (j = 0; j < bh2; j++){
368 for (i = 0; i < bw2; i++) {
369 out[i] ^= *((uint32_t *) src);
394 memcpy(c->
pal, src, 768);
406 int buf_size = avpkt->
size;
410 int hi_ver, lo_ver, ret;
435 "Flags=%X ver=%i.%i comp=%i fmt=%i blk=%ix%i\n",
437 if (hi_ver != 0 || lo_ver != 1) {
441 if (c->
bw == 0 || c->
bh == 0) {
469 #ifdef ZMBV_ENABLE_24BPP
477 #endif //ZMBV_ENABLE_24BPP
491 zret = inflateReset(&c->
zstream);
529 if (zret != Z_OK && zret != Z_STREAM_END) {
553 out = frame->
data[0];
557 for (j = 0; j < 256; j++)
561 #ifdef ZMBV_ENABLE_24BPP
592 memset(&c->
zstream, 0,
sizeof(z_stream));
595 av_log(avctx,
AV_LOG_ERROR,
"Internal buffer (decomp_size) larger than max_pixels or too large\n");
605 "Can't allocate decompression buffer.\n");
613 zret = inflateInit(&c->
zstream);
int(* decode_xor)(struct ZmbvContext *c)
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
#define av_realloc_f(p, o, n)
This structure describes decoded (raw) audio or video data.
ptrdiff_t const GLvoid * data
packed RGB 8:8:8, 24bpp, RGBRGB...
static av_cold int init(AVCodecContext *avctx)
static int zmbv_decode_xor_32(ZmbvContext *c)
Decode XOR'ed frame - 32bpp version.
static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
packed RGB 5:5:5, 16bpp, (msb)1X 5R 5G 5B(lsb), little-endian, X=unused/undefined ...
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
packed RGB 5:6:5, 16bpp, (msb) 5R 6G 5B(lsb), little-endian
void void avpriv_request_sample(void *avc, const char *msg,...) av_printf_format(2
Log a generic warning message about a missing feature.
8 bits with AV_PIX_FMT_RGB32 palette
static void inflate(uint8_t *dst, const uint8_t *p1, int width, int threshold, const uint8_t *coordinates[], int coord)
static av_cold int decode_init(AVCodecContext *avctx)
int bits_per_coded_sample
bits per sample/pixel from the demuxer (needed for huffyuv).
static int zmbv_decode_xor_8(ZmbvContext *c)
Decode XOR'ed frame - 8bpp version.
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
#define PTRDIFF_SPECIFIER
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
const char * name
Name of the codec implementation.
static av_cold int decode_end(AVCodecContext *avctx)
int64_t max_pixels
The number of pixels per image to maximally accept.
enum AVPictureType pict_type
Picture type of the frame.
int width
picture width / height.
#define AVERROR_PATCHWELCOME
Not yet implemented in FFmpeg, patches welcome.
Libavcodec external API header.
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_WL32 unsigned int_TMPL AV_WL24 unsigned int_TMPL AV_WL16 uint64_t_TMPL AV_WB64 unsigned int_TMPL AV_WB32 unsigned int_TMPL AV_RB24
static int zmbv_decode_xor_16(ZmbvContext *c)
Decode XOR'ed frame - 15bpp and 16bpp version.
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
main external API structure.
int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
Get a buffer for a frame.
packed BGR 8:8:8, 32bpp, BGRXBGRX... X=unused/undefined
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
common internal api header.
common internal and external API header
#define AVERROR_UNKNOWN
Unknown error, typically from an external library.
int key_frame
1 -> keyframe, 0-> not
int(* decode_intra)(struct ZmbvContext *c)
static int zmbv_decode_intra(ZmbvContext *c)
Decode intraframe.
static int decode(AVCodecContext *avctx, AVFrame *frame, int *got_frame, AVPacket *pkt)
#define FFSWAP(type, a, b)
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.
This structure stores compressed data.
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.