31 #include "libavutil/imgutils.h"
47 const uint8_t *
src,
int src_plane_size,
int nplanes)
53 if (dst_size < 2LL * src_plane_size * nplanes || src_plane_size <= 0)
56 for (p = 0; p < nplanes; p++) {
58 const uint8_t *src_plane = src + p;
59 const uint8_t *src_plane_end = src_plane + src_plane_size * nplanes;
63 for (; ; src_plane += nplanes) {
64 if (src_plane < src_plane_end && *src_plane == prev && count < 0x3F) {
69 if (count != 1 || prev >= 0xC0)
70 *dst++ = 0xC0 |
count;
73 if (src_plane == src_plane_end)
83 return dst - dst_start;
93 int bpp, nplanes, i,
y, line_bytes, written,
ret, max_pkt_size, sw, sh;
94 const uint32_t *pal = NULL;
95 uint32_t palette256[256];
101 if (avctx->
width > 65535 || avctx->
height > 65535) {
124 pal = (uint32_t *)pict->
data[1];
136 line_bytes = (avctx->
width * bpp + 7) >> 3;
137 line_bytes = (line_bytes + 1) & ~1;
139 max_pkt_size = 128 + avctx->
height * 2 * line_bytes * nplanes + (pal ? 256*3 + 1 : 0);
147 if (sw > 0xFFFFu || sh > 0xFFFFu)
150 bytestream_put_byte(&buf, 10);
151 bytestream_put_byte(&buf, 5);
152 bytestream_put_byte(&buf, 1);
153 bytestream_put_byte(&buf, bpp);
154 bytestream_put_le16(&buf, 0);
155 bytestream_put_le16(&buf, 0);
156 bytestream_put_le16(&buf, avctx->
width - 1);
157 bytestream_put_le16(&buf, avctx->
height - 1);
158 bytestream_put_le16(&buf, sw);
159 bytestream_put_le16(&buf, sh);
160 for (i = 0; i < 16; i++)
161 bytestream_put_be24(&buf, pal ? pal[i] : 0);
162 bytestream_put_byte(&buf, 0);
163 bytestream_put_byte(&buf, nplanes);
164 bytestream_put_le16(&buf, line_bytes);
166 while (buf - pkt->
data < 128)
171 for (y = 0; y < avctx->
height; y++) {
173 src, line_bytes, nplanes)) < 0) {
181 if (nplanes == 1 && bpp == 8) {
182 if (buf_end - buf < 257) {
186 bytestream_put_byte(&buf, 12);
187 for (i = 0; i < 256; i++) {
188 bytestream_put_be24(&buf, pal[i]);
int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int64_t size)
Check AVPacket size and/or allocate data.
This structure describes decoded (raw) audio or video data.
packed RGB 8:8:8, 24bpp, RGBRGB...
AVRational sample_aspect_ratio
sample aspect ratio (0 if unknown) That is the width of a pixel divided by the height of the pixel...
void av_log(void *avcl, int level, const char *fmt,...) av_printf_format(3
Send the specified message to the log if the level is less than or equal to the current av_log_level...
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
packed RGB 3:3:2, 8bpp, (msb)2B 3G 3R(lsb)
const char * name
Name of the codec implementation.
packed RGB 3:3:2, 8bpp, (msb)2R 3G 3B(lsb)
#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. ...
static int pcx_rle_encode(uint8_t *dst, int dst_size, const uint8_t *src, int src_plane_size, int nplanes)
PCX run-length encoder.
int avpriv_set_systematic_pal2(uint32_t pal[256], enum AVPixelFormat pix_fmt)
Libavcodec external API header.
AVPixelFormat
Pixel format.
int flags
A combination of AV_PKT_FLAG values.
int av_reduce(int *dst_num, int *dst_den, int64_t num, int64_t den, int64_t max)
Reduce a fraction.
enum AVPictureType pict_type
Picture type of the frame.
int width
picture width / height.
static int pcx_encode_frame(AVCodecContext *avctx, AVPacket *pkt, const AVFrame *frame, int *got_packet)
packed RGB 1:2:1, 8bpp, (msb)1B 2G 1R(lsb)
main external API structure.
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
common internal api header.
Y , 1bpp, 0 is black, 1 is white, in each byte pixels are ordered from the msb to the lsb...
int key_frame
1 -> keyframe, 0-> not
static const uint32_t monoblack_pal[16]
8 bit with PIX_FMT_RGB32 palette
packed RGB 1:2:1, 8bpp, (msb)1R 2G 1B(lsb)
This structure stores compressed data.
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.