58 c0 = bytestream2_get_byte(&qctx->
buffer);
59 c1 = bytestream2_get_byte(&qctx->
buffer);
60 run = ((
code & 0x7) << 16) + (c0 << 8) +
c1 + 2;
61 }
else if (
code >= 0xF0) {
62 c0 = bytestream2_get_byte(&qctx->
buffer);
63 run = ((
code & 0xF) << 8) + c0 + 2;
64 }
else if (
code >= 0xE0) {
66 }
else if (
code >= 0xC0) {
67 c0 = bytestream2_get_byte(&qctx->
buffer);
68 c1 = bytestream2_get_byte(&qctx->
buffer);
69 copy = ((
code & 0x3F) << 16) + (c0 << 8) +
c1 + 1;
70 }
else if (
code >= 0x80) {
71 c0 = bytestream2_get_byte(&qctx->
buffer);
72 copy = ((
code & 0x7F) << 8) + c0 + 1;
81 p = bytestream2_get_byte(&qctx->
buffer);
84 memset(dst+filled, p, step);
87 if (filled >=
width) {
91 while (
run -
i >
width && rows_to_go > 0) {
92 memset(dst, p,
width);
109 if (filled >=
width) {
122 { 0x00, 0x20, 0x20, 0x20, 0x18, 0x10, 0x10, 0x20, 0x10, 0x08, 0x18, 0x08, 0x08, 0x18, 0x10, 0x04};
124 { 0x00, 0x20, 0x18, 0x08, 0x18, 0x10, 0x20, 0x10, 0x08, 0x10, 0x20, 0x20, 0x08, 0x10, 0x18, 0x04};
157 int me_w, me_h, me_x, me_y;
167 corr = bytestream2_get_byte(&qctx->
buffer);
180 if ((me_x + filled < 0) || (me_x + me_w + filled >
width) ||
181 (
height - me_y - me_h < 0) || (
height - me_y >= orig_height) ||
184 me_x, me_y, me_w, me_h, filled,
height);
187 me_plane = refdata + (filled + me_x) + (
height - me_y) *
stride;
188 for(j = 0; j < me_h; j++) {
189 for(
i = 0;
i < me_w;
i++)
204 p = bytestream2_get_byte(&qctx->
buffer);
207 if(filled >=
width) {
215 }
else if(
code >= 0xC0) {
222 dst[filled++] = bytestream2_get_byte(&qctx->
buffer);
223 if(filled >=
width) {
231 }
else if(
code >= 0x80) {
238 skip = bytestream2_get_byte(&qctx->
buffer) + 64;
240 skip = bytestream2_get_byte(&qctx->
buffer) + 320;
244 while( filled >=
width) {
254 dst[filled++] = ctable[
code & 0x7F];
258 if(filled >=
width) {
268 void *
data,
int *got_frame,
276 int delta, intra, ret;
280 if (avpkt->
size < 0x86) {
289 outdata = p->
data[0];
294 delta = bytestream2_get_byte(&
a->buffer);
295 intra =
delta == 0x10;
333 for (
i=0;
i<pal_size/4;
i++)
static void flush(AVCodecContext *avctx)
static double val(void *priv, double ch)
Libavcodec external API header.
uint8_t * av_packet_get_side_data(const AVPacket *pkt, enum AVPacketSideDataType type, buffer_size_t *size)
static av_cold int init(AVCodecContext *avctx)
static av_always_inline unsigned int bytestream2_get_buffer(GetByteContext *g, uint8_t *dst, unsigned int size)
static av_always_inline unsigned int bytestream2_get_bufferu(GetByteContext *g, uint8_t *dst, unsigned int size)
static av_always_inline int bytestream2_get_bytes_left(GetByteContext *g)
static av_always_inline void bytestream2_init(GetByteContext *g, const uint8_t *buf, int buf_size)
static av_always_inline void bytestream2_skip(GetByteContext *g, unsigned int size)
int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
Get a buffer for a frame.
static void decode(AVCodecContext *dec_ctx, AVPacket *pkt, AVFrame *frame, FILE *outfile)
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() or get_encode_buffer() for allocating buffers and supports custom allocators.
#define AV_GET_BUFFER_FLAG_REF
The decoder will keep a reference to the frame and may reuse it later.
@ AV_PKT_DATA_PALETTE
An AV_PKT_DATA_PALETTE side data packet contains exactly AVPALETTE_SIZE bytes worth of palette.
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
void av_frame_unref(AVFrame *frame)
Unreference all the buffers referenced by frame and reset the frame fields.
int av_frame_ref(AVFrame *dst, const AVFrame *src)
Set up a new reference to the data described by the source frame.
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
AVFrame * av_frame_alloc(void)
Allocate an AVFrame and set its fields to default values.
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
@ AV_PICTURE_TYPE_I
Intra.
@ AV_PICTURE_TYPE_P
Predicted.
#define FF_CODEC_CAP_INIT_THREADSAFE
The codec does not modify any global variables in the init function, allowing to call the init functi...
#define FF_CODEC_CAP_INIT_CLEANUP
The codec allows calling the close function for deallocation even if the init function returned a fai...
common internal API header
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
@ AV_PIX_FMT_PAL8
8 bits with AV_PIX_FMT_RGB32 palette
static void qpeg_decode_intra(QpegContext *qctx, uint8_t *dst, int stride, int width, int height)
static av_cold int decode_init(AVCodecContext *avctx)
static const uint8_t qpeg_table_h[16]
static av_cold int decode_end(AVCodecContext *avctx)
static void av_noinline qpeg_decode_inter(QpegContext *qctx, uint8_t *dst, int stride, int width, int height, int delta, const uint8_t *ctable, uint8_t *refdata)
static void decode_flush(AVCodecContext *avctx)
static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
static const uint8_t qpeg_table_w[16]
main external API structure.
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
int width
picture width / height.
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
const char * name
Name of the codec implementation.
This structure describes decoded (raw) audio or video data.
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
int key_frame
1 -> keyframe, 0-> not
int palette_has_changed
Tell user application that palette has changed from previous frame.
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
enum AVPictureType pict_type
Picture type of the frame.
This structure stores compressed data.
static int ref[MAX_W *MAX_W]
static void copy(const float *p1, float *p2, const int length)