39 #include "libavutil/intreadwrite.h"
61 int buf_size = avpkt->
size;
63 const unsigned char *encoded =
buf;
64 unsigned char *pixptr, *pixptr_end;
66 unsigned int dlen, p, row;
67 const unsigned char *lp, *dp, *ep;
69 unsigned int planes = c->
planes;
70 unsigned char *planemap = c->
planemap;
76 ep = encoded + buf_size;
79 dp = encoded + planes * (height << 1);
81 for (p = 0; p < planes; p++) {
83 lp = encoded + p * (height << 1);
86 for (row = 0; row <
height; row++) {
87 pixptr = frame->
data[0] + row * frame->
linesize[0] + planemap[p];
88 pixptr_end = pixptr + frame->
linesize[0];
89 if (ep - lp < row * 2 + 2)
91 dlen =
av_be2ne16(*(
const unsigned short *)(lp + row * 2));
96 if ((count = *dp++) <= 127) {
99 if (pixptr_end - pixptr < count * planes)
109 if (pixptr_end - pixptr < count * planes)
This structure describes decoded (raw) audio or video data.
static av_cold int init(AVCodecContext *avctx)
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 8:8:8, 24bpp, BGRBGR...
AVCodec ff_eightbps_decoder
const char * name
Name of the codec implementation.
#define CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.
int bits_per_coded_sample
bits per sample/pixel from the demuxer (needed for huffyuv).
#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. ...
Libavcodec external API header.
AVPixelFormat
Pixel format.
common internal API header
uint8_t * av_packet_get_side_data(AVPacket *pkt, enum AVPacketSideDataType type, int *size)
Get side information from packet.
static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
main external API structure.
int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
Get a buffer for a frame.
BYTE int const BYTE int int int height
enum AVPixelFormat(* get_format)(struct AVCodecContext *s, const enum AVPixelFormat *fmt)
callback to negotiate the pixelFormat
static av_cold int decode_init(AVCodecContext *avctx)
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.
static enum AVPixelFormat pixfmt_rgb24[]
unsigned char planemap[4]
common internal api header.
#define AVERROR_INVALIDDATA
static int decode(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
8 bit with PIX_FMT_RGB32 palette
This structure stores compressed data.
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.