30 #define WINDOW_NAME "lavcxwdenc"
31 #define WINDOW_NAME_SIZE 11
34 const AVFrame *pict,
int *got_packet)
38 uint32_t pixdepth, bpp, bpad, ncolors = 0, lsize, vclass, be = 0;
39 uint32_t rgb[3] = { 0 }, bitorder = 0;
156 bytestream_put_be32(&buf, header_size);
159 bytestream_put_be32(&buf, pixdepth);
160 bytestream_put_be32(&buf, avctx->
width);
161 bytestream_put_be32(&buf, avctx->
height);
162 bytestream_put_be32(&buf, 0);
163 bytestream_put_be32(&buf, be);
164 bytestream_put_be32(&buf, 32);
165 bytestream_put_be32(&buf, bitorder);
166 bytestream_put_be32(&buf, bpad);
167 bytestream_put_be32(&buf, bpp);
168 bytestream_put_be32(&buf, lsize);
169 bytestream_put_be32(&buf, vclass);
170 bytestream_put_be32(&buf, rgb[0]);
171 bytestream_put_be32(&buf, rgb[1]);
172 bytestream_put_be32(&buf, rgb[2]);
173 bytestream_put_be32(&buf, 8);
174 bytestream_put_be32(&buf, ncolors);
175 bytestream_put_be32(&buf, ncolors);
176 bytestream_put_be32(&buf, avctx->
width);
177 bytestream_put_be32(&buf, avctx->
height);
178 bytestream_put_be32(&buf, 0);
179 bytestream_put_be32(&buf, 0);
180 bytestream_put_be32(&buf, 0);
183 for (i = 0; i < ncolors; i++) {
188 red = (val >> 16) & 0xFF;
189 green = (val >> 8) & 0xFF;
192 bytestream_put_be32(&buf, i);
193 bytestream_put_be16(&buf, red << 8);
194 bytestream_put_be16(&buf, green << 8);
195 bytestream_put_be16(&buf, blue << 8);
196 bytestream_put_byte(&buf, 0x7);
197 bytestream_put_byte(&buf, 0);
201 for (i = 0; i < avctx->
height; i++) {
int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int64_t size)
Check AVPacket size and/or allocate data.
const char const char void * val
static enum AVPixelFormat pix_fmt
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
This structure describes decoded (raw) audio or video data.
packed RGB 8:8:8, 24bpp, RGBRGB...
int av_get_bits_per_pixel(const AVPixFmtDescriptor *pixdesc)
Return the number of bits per pixel used by the pixel format described by pixdesc.
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.
packed BGR 5:6:5, 16bpp, (msb) 5B 6G 5R(lsb), little-endian
packed RGB 5:6:5, 16bpp, (msb) 5R 6G 5B(lsb), little-endian
packed RGB 1:2:1, 8bpp, (msb)1B 2G 1R(lsb)
8 bit with AV_PIX_FMT_RGB32 palette
packed RGB 5:6:5, 16bpp, (msb) 5R 6G 5B(lsb), big-endian
packed ABGR 8:8:8:8, 32bpp, ABGRABGR...
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
packed BGRA 8:8:8:8, 32bpp, BGRABGRA...
const char * name
Name of the codec implementation.
Libavcodec external API header.
packed ARGB 8:8:8:8, 32bpp, ARGBARGB...
packed RGBA 8:8:8:8, 32bpp, RGBARGBA...
int flags
A combination of AV_PKT_FLAG values.
enum AVPictureType pict_type
Picture type of the frame.
packed RGB 1:2:1, 8bpp, (msb)1R 2G 1B(lsb)
int width
picture width / height.
packed RGB 8:8:8, 24bpp, BGRBGR...
packed BGR 5:6:5, 16bpp, (msb) 5B 6G 5R(lsb), big-endian
packed RGB 3:3:2, 8bpp, (msb)2B 3G 3R(lsb)
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
main external API structure.
packed BGR 5:5:5, 16bpp, (msb)1X 5B 5G 5R(lsb), little-endian, X=unused/undefined ...
packed RGB 5:5:5, 16bpp, (msb)1X 5R 5G 5B(lsb), big-endian , X=unused/undefined
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
common internal api header.
Y , 1bpp, 0 is white, 1 is black, in each byte pixels are ordered from the msb to the lsb...
packed RGB 3:3:2, 8bpp, (msb)2R 3G 3B(lsb)
#define AV_PIX_FMT_FLAG_BE
Pixel format is big-endian.
static av_always_inline void bytestream_put_buffer(uint8_t **b, const uint8_t *src, unsigned int size)
static int xwd_encode_frame(AVCodecContext *avctx, AVPacket *pkt, const AVFrame *pict, int *got_packet)
int key_frame
1 -> keyframe, 0-> not
packed BGR 5:5:5, 16bpp, (msb)1X 5B 5G 5R(lsb), big-endian , X=unused/undefined
AVPixelFormat
Pixel format.
This structure stores compressed data.