38 #define ZMBV_KEYFRAME 1 39 #define ZMBV_DELTAPAL 2 87 int d, dx, dy, bw2, bh2;
96 for (i = 0; i < 768; i++)
101 src += ((c->
bx * c->
by * 2 + 3) & ~3);
104 for (y = 0; y < c->
height; y += c->
bh) {
106 for (x = 0; x < c->
width; x += c->
bw) {
110 dx = mvec[
block] >> 1;
111 dy = mvec[block + 1] >> 1;
118 tprev = prev + x + dx + dy * c->
width;
121 for (j = 0; j < bh2; j++) {
122 if (my + j < 0 || my + j >= c->
height) {
124 }
else if (mx >= 0 && mx + bw2 <= c->
width){
125 memcpy(out, tprev,
sizeof(*out) * bw2);
127 for (i = 0; i < bw2; i++) {
128 if (mx + i < 0 || mx + i >= c->
width)
140 for (j = 0; j < bh2; j++) {
141 for (i = 0; i < bw2; i++)
163 uint16_t *output, *
prev;
166 int d, dx, dy, bw2, bh2;
171 output = (uint16_t*)c->
cur;
172 prev = (uint16_t*)c->
prev;
175 src += ((c->
bx * c->
by * 2 + 3) & ~3);
178 for (y = 0; y < c->
height; y += c->
bh) {
180 for (x = 0; x < c->
width; x += c->
bw) {
181 uint16_t *
out, *tprev;
184 dx = mvec[
block] >> 1;
185 dy = mvec[block + 1] >> 1;
192 tprev = prev + x + dx + dy * c->
width;
195 for (j = 0; j < bh2; j++) {
196 if (my + j < 0 || my + j >= c->
height) {
197 memset(out, 0, bw2 * 2);
198 }
else if (mx >= 0 && mx + bw2 <= c->
width){
199 memcpy(out, tprev,
sizeof(*out) * bw2);
201 for (i = 0; i < bw2; i++) {
202 if (mx + i < 0 || mx + i >= c->
width)
214 for (j = 0; j < bh2; j++){
215 for (i = 0; i < bw2; i++) {
216 out[
i] ^= *((uint16_t*)src);
232 #ifdef ZMBV_ENABLE_24BPP 243 int d, dx, dy, bw2, bh2;
252 stride = c->
width * 3;
254 src += ((c->
bx * c->
by * 2 + 3) & ~3);
257 for (y = 0; y < c->
height; y += c->
bh) {
259 for (x = 0; x < c->
width; x += c->
bw) {
263 dx = mvec[
block] >> 1;
264 dy = mvec[block + 1] >> 1;
270 out = output + x * 3;
271 tprev = prev + (x + dx) * 3 + dy * stride;
274 for (j = 0; j < bh2; j++) {
275 if (my + j < 0 || my + j >= c->
height) {
276 memset(out, 0, bw2 * 3);
277 }
else if (mx >= 0 && mx + bw2 <= c->
width){
278 memcpy(out, tprev, 3 * bw2);
280 for (i = 0; i < bw2; i++){
281 if (mx + i < 0 || mx + i >= c->
width) {
286 out[i * 3 + 0] = tprev[i * 3 + 0];
287 out[i * 3 + 1] = tprev[i * 3 + 1];
288 out[i * 3 + 2] = tprev[i * 3 + 2];
297 out = output + x * 3;
298 for (j = 0; j < bh2; j++) {
299 for (i = 0; i < bw2; i++) {
300 out[i * 3 + 0] ^= *src++;
301 out[i * 3 + 1] ^= *src++;
302 out[i * 3 + 2] ^= *src++;
308 output += stride * c->
bh;
309 prev += stride * c->
bh;
316 #endif //ZMBV_ENABLE_24BPP 325 uint32_t *output, *
prev;
328 int d, dx, dy, bw2, bh2;
333 output = (uint32_t*)c->
cur;
334 prev = (uint32_t*)c->
prev;
337 src += ((c->
bx * c->
by * 2 + 3) & ~3);
340 for (y = 0; y < c->
height; y += c->
bh) {
342 for (x = 0; x < c->
width; x += c->
bw) {
343 uint32_t *
out, *tprev;
346 dx = mvec[
block] >> 1;
347 dy = mvec[block + 1] >> 1;
354 tprev = prev + x + dx + dy * c->
width;
357 for (j = 0; j < bh2; j++) {
358 if (my + j < 0 || my + j >= c->
height) {
359 memset(out, 0, bw2 * 4);
360 }
else if (mx >= 0 && mx + bw2 <= c->
width){
361 memcpy(out, tprev,
sizeof(*out) * bw2);
363 for (i = 0; i < bw2; i++){
364 if (mx + i < 0 || mx + i >= c->
width)
376 for (j = 0; j < bh2; j++){
377 for (i = 0; i < bw2; i++) {
378 out[
i] ^= *((uint32_t *) src);
403 memcpy(c->
pal, src, 768);
415 int buf_size = avpkt->
size;
419 int hi_ver, lo_ver, ret;
443 "Flags=%X ver=%i.%i comp=%i fmt=%i blk=%ix%i\n",
445 if (hi_ver != 0 || lo_ver != 1) {
449 if (c->
bw == 0 || c->
bh == 0) {
475 #ifdef ZMBV_ENABLE_24BPP 482 #endif //ZMBV_ENABLE_24BPP 495 zret = inflateReset(&c->
zstream);
519 expected_size = (c->
bx * c->
by * 2 + 3) & ~3;
523 expected_size += 768;
544 if (zret != Z_OK && zret != Z_STREAM_END) {
576 out = frame->
data[0];
580 for (j = 0; j < 256; j++)
584 #ifdef ZMBV_ENABLE_24BPP 615 memset(&c->
zstream, 0,
sizeof(z_stream));
618 av_log(avctx,
AV_LOG_ERROR,
"Internal buffer (decomp_size) larger than max_pixels or too large\n");
628 "Can't allocate decompression buffer.\n");
635 zret = inflateInit(&c->
zstream);
#define FF_CODEC_CAP_INIT_CLEANUP
The codec allows calling the close function for deallocation even if the init function returned a fai...
#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.
static av_cold int init(AVCodecContext *avctx)
#define avpriv_request_sample(...)
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.
static void decode(AVCodecContext *dec_ctx, AVPacket *pkt, AVFrame *frame, FILE *outfile)
packed RGB 5:6:5, 16bpp, (msb) 5R 6G 5B(lsb), little-endian
int(* decode_xor)(struct ZmbvContext *c)
8 bits with AV_PIX_FMT_RGB32 palette
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 i(width, name, range_min, range_max)
#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.
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
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.
packed RGB 8:8:8, 24bpp, BGRBGR...
#define AVERROR_PATCHWELCOME
Not yet implemented in FFmpeg, patches welcome.
Libavcodec external API header.
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.
static void inflate(uint8_t *dst, const uint8_t *p1, int width, int threshold, const uint8_t *coordinates[], int coord, int maxc)
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
static int zmbv_decode_intra(ZmbvContext *c)
Decode intraframe.
#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.