30 #define SGI_SINGLE_CHAN 2
31 #define SGI_MULTI_CHAN 3
41 if (avctx->
width > 65535 || avctx->
height > 65535) {
43 "SGI does not support resolutions above 65535x65535\n",
58 bytestream2_put = bytestream2_put_byte;
60 bytestream2_put = bytestream2_put_be16;
62 for (x = 0; x <
w; x += count) {
70 bytestream2_put(pbc, count);
71 bytestream2_put(pbc,
val);
79 bytestream2_put(pbc, count + 0x80);
80 for (
i = 0;
i < count;
i++) {
82 bytestream2_put(pbc,
val);
99 int x, y, z, length, tablesize, ret,
i;
101 unsigned int bytes_per_channel, pixmax, put_be;
103 #if FF_API_CODED_FRAME
110 #if FF_API_CODER_TYPE
119 bytes_per_channel = 1;
139 bytes_per_channel = 2;
147 bytes_per_channel = 2;
155 bytes_per_channel = 2;
164 tablesize = depth *
height * 4;
169 length += tablesize * 2 + depth *
height * (2 *
width + 1);
178 bytestream2_put_byte(&pbc,
s->rle);
179 bytestream2_put_byte(&pbc, bytes_per_channel);
180 bytestream2_put_be16(&pbc, dimension);
181 bytestream2_put_be16(&pbc,
width);
182 bytestream2_put_be16(&pbc,
height);
183 bytestream2_put_be16(&pbc, depth);
185 bytestream2_put_be32(&pbc, 0
L);
186 bytestream2_put_be32(&pbc, pixmax);
187 bytestream2_put_be32(&pbc, 0
L);
190 for (
i = 0;
i < 80;
i++)
191 bytestream2_put_byte(&pbc, 0
L);
194 bytestream2_put_be32(&pbc, 0
L);
197 for (
i = 0;
i < 404;
i++)
198 bytestream2_put_byte(&pbc, 0
L);
215 for (z = 0; z < depth; z++) {
218 for (y = 0; y <
height; y++) {
221 for (x = 0; x <
width * bytes_per_channel; x += bytes_per_channel)
222 if (bytes_per_channel == 1) {
223 encode_buf[x] = in_buf[depth * x];
225 encode_buf[x + 1] = in_buf[depth * x];
226 encode_buf[x] = in_buf[depth * x + 1];
228 encode_buf[x] = in_buf[depth * x];
229 encode_buf[x + 1] = in_buf[depth * x + 1];
239 bytestream2_put_be32(&tablen_pcb, length);
246 for (z = 0; z < depth; z++) {
249 for (y = 0; y <
height; y++) {
250 for (x = 0; x <
width * depth; x += depth)
251 if (bytes_per_channel == 1)
252 bytestream2_put_byte(&pbc, in_buf[x]);
255 bytestream2_put_be16(&pbc, ((uint16_t *)in_buf)[x]);
257 bytestream2_put_le16(&pbc, ((uint16_t *)in_buf)[x]);
272 #define OFFSET(x) offsetof(SgiContext, x)
273 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
static double val(void *priv, double ch)
Libavcodec external API header.
#define FF_CODER_TYPE_RAW
static av_cold int init(AVCodecContext *avctx)
static av_always_inline void bytestream2_init_writer(PutByteContext *p, uint8_t *buf, int buf_size)
static av_always_inline int bytestream2_tell_p(PutByteContext *p)
static av_always_inline void bytestream2_skip_p(PutByteContext *p, unsigned int size)
static av_always_inline int bytestream2_get_bytes_left_p(PutByteContext *p)
int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int64_t size, int64_t min_size)
Check AVPacket size and/or allocate data.
static int rle(uint8_t *dst, const uint8_t *src, int compressed_size, int uncompressed_size)
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
const char * av_default_item_name(void *ptr)
Return the context name.
@ AV_PICTURE_TYPE_I
Intra.
#define LIBAVUTIL_VERSION_INT
#define FF_CODEC_CAP_INIT_THREADSAFE
The codec does not modify any global variables in the init function, allowing to call the init functi...
common internal API header
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
#define FF_DISABLE_DEPRECATION_WARNINGS
#define FF_ENABLE_DEPRECATION_WARNINGS
static enum AVPixelFormat pix_fmts[]
AVPixelFormat
Pixel format.
@ AV_PIX_FMT_GRAY16BE
Y , 16bpp, big-endian.
@ AV_PIX_FMT_RGB24
packed RGB 8:8:8, 24bpp, RGBRGB...
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
@ AV_PIX_FMT_RGB48BE
packed RGB 16:16:16, 48bpp, 16R, 16G, 16B, the 2-byte value for each R/G/B component is stored as big...
@ AV_PIX_FMT_RGBA64BE
packed RGBA 16:16:16:16, 64bpp, 16R, 16G, 16B, 16A, the 2-byte value for each R/G/B/A component is st...
@ AV_PIX_FMT_RGBA64LE
packed RGBA 16:16:16:16, 64bpp, 16R, 16G, 16B, 16A, the 2-byte value for each R/G/B/A component is st...
@ AV_PIX_FMT_RGBA
packed RGBA 8:8:8:8, 32bpp, RGBARGBA...
@ AV_PIX_FMT_RGB48LE
packed RGB 16:16:16, 48bpp, 16R, 16G, 16B, the 2-byte value for each R/G/B component is stored as lit...
@ AV_PIX_FMT_GRAY16LE
Y , 16bpp, little-endian.
typedef void(RENAME(mix_any_func_type))
int ff_rle_count_pixels(const uint8_t *start, int len, int bpp, int same)
Count up to 127 consecutive pixels which are either all the same or all differ from the previous and ...
#define SGI_MAGIC
SGI image file signature.
static const AVOption options[]
static int sgi_rle_encode(PutByteContext *pbc, const uint8_t *src, int w, int bpp)
static av_cold int encode_init(AVCodecContext *avctx)
static int encode_frame(AVCodecContext *avctx, AVPacket *pkt, const AVFrame *frame, int *got_packet)
static const AVClass sgi_class
Describe the class of an AVClass context structure.
const char * class_name
The name of the class; usually it is the same name as the context structure type to which the AVClass...
main external API structure.
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
int width
picture width / height.
attribute_deprecated int coder_type
attribute_deprecated AVFrame * coded_frame
the picture in the bitstream
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 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.
int flags
A combination of AV_PKT_FLAG values.