35 unsigned int w,
h, depth,
type, maptype, maplength,
stride, x, y,
len, alen;
104 len = (depth * w + 7) >> 3;
105 alen = len + (len & 1);
107 if (buf_end - buf < maplength + (len * h) * 3 / 256)
115 if (depth > 8 && maplength) {
116 av_log(avctx,
AV_LOG_WARNING,
"useless colormap found or file is corrupted, trying to recover\n");
118 }
else if (maplength) {
119 unsigned int len = maplength / 3;
121 if (maplength % 3 || maplength > 768) {
127 for (x = 0; x <
len; x++, ptr += 4)
128 *(uint32_t *)ptr = (0xFF
U<<24) + (buf[x]<<16) + (buf[len+x]<<8) + buf[len+len+x];
133 if (maplength && depth < 8) {
137 stride = (w + 15 >> 3) * depth;
148 while (ptr != end && buf < buf_end) {
150 if (buf_end - buf < 1)
170 for (y = 0; y <
h; y++) {
171 if (buf_end - buf < alen)
173 memcpy(ptr, buf, len);
181 for (y=0; y<
h; y++) {
182 for (x = 0; x < (w + 7 >> 3) * depth; x++) {
184 ptr[8*x] = ptr2[x] >> 7;
185 ptr[8*x+1] = ptr2[x] >> 6 & 1;
186 ptr[8*x+2] = ptr2[x] >> 5 & 1;
187 ptr[8*x+3] = ptr2[x] >> 4 & 1;
188 ptr[8*x+4] = ptr2[x] >> 3 & 1;
189 ptr[8*x+5] = ptr2[x] >> 2 & 1;
190 ptr[8*x+6] = ptr2[x] >> 1 & 1;
191 ptr[8*x+7] = ptr2[x] & 1;
193 ptr[2*x] = ptr2[x] >> 4;
194 ptr[2*x+1] = ptr2[x] & 0xF;
198 ptr2 += (w + 15 >> 3) * depth;
205 return buf - bufstart;
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
This structure describes decoded (raw) audio or video data.
ptrdiff_t const GLvoid * data
#define AV_LOG_WARNING
Something somehow does not look correct.
packed RGB 8:8:8, 24bpp, RGBRGB...
int ff_set_dimensions(AVCodecContext *s, int width, int height)
Check that the provided frame dimensions are valid and set them on the codec context.
#define avpriv_request_sample(...)
#define RMT_RAW
the data layout of this map type is unknown
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
packed BGR 8:8:8, 32bpp, XBGRXBGR... X=unused/undefined
8 bits with AV_PIX_FMT_RGB32 palette
static av_cold int end(AVCodecContext *avctx)
GLsizei GLboolean const GLfloat * value
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_WL32 unsigned int_TMPL AV_WL24 unsigned int_TMPL AV_WL16 uint64_t_TMPL AV_WB64 unsigned int_TMPL AV_RB32
#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. ...
const char * name
Name of the codec implementation.
enum AVPictureType pict_type
Picture type of the frame.
AVCodec ff_sunrast_decoder
packed RGB 8:8:8, 24bpp, BGRBGR...
#define AVERROR_PATCHWELCOME
Not yet implemented in FFmpeg, patches welcome.
Libavcodec external API header.
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 int sunrast_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
common internal api header.
common internal and external API header
Y , 1bpp, 0 is white, 1 is black, in each byte pixels are ordered from the msb to the lsb...
#define av_malloc_array(a, b)
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later.That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another.Frame references ownership and permissions
packed RGB 8:8:8, 32bpp, XRGBXRGB... X=unused/undefined
This structure stores compressed data.
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.