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44 #define RBG323_TO_BGR8(x) ((((x) << 3) & 0xC0) | \
45 (((x) << 3) & 0x38) | \
66 const uint8_t *
src,
int src_size,
69 const uint8_t *src_end =
src + src_size;
81 while (src_end -
src >= 2) {
83 if (v > 0 && v < 0xC0) {
93 }
else if (v >= 0xC1) {
97 if (src_end -
src < length || length <= 0)
127 frame->key_frame = 1;
#define FF_CODEC_CAP_INIT_THREADSAFE
The codec does not modify any global variables in the init function, allowing to call the init functi...
static av_always_inline void rbg323_to_bgr8(uint8_t *dst, const uint8_t *src, int size)
static av_cold int sgirle_decode_init(AVCodecContext *avctx)
This structure describes decoded (raw) audio or video data.
@ AV_PIX_FMT_BGR8
packed RGB 3:3:2, 8bpp, (msb)2B 3G 3R(lsb)
#define AVERROR_PATCHWELCOME
Not yet implemented in FFmpeg, patches welcome.
const AVCodec ff_sgirle_decoder
@ AV_PICTURE_TYPE_I
Intra.
int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
Get a buffer for a frame.
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() or get_encode_buffer() for allocating buffers and supports custom allocators.
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
static int sgirle_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
#define i(width, name, range_min, range_max)
const char * name
Name of the codec implementation.
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
#define RBG323_TO_BGR8(x)
Convert SGI RBG323 pixel into AV_PIX_FMT_BGR8 SGI RGB data is packed as 8bpp, (msb)3R 2B 3G(lsb)
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several the filter must be ready for frames arriving randomly on any input any filter with several inputs will most likely require some kind of queuing mechanism It is perfectly acceptable to have a limited queue and to drop frames when the inputs are too unbalanced request_frame For filters that do not use the this method is called when a frame is wanted on an output For a it should directly call filter_frame on the corresponding output For a if there are queued frames already one of these frames should be pushed If the filter should request a frame on one of its repeatedly until at least one frame has been pushed Return or at least make progress towards producing a frame
main external API structure.
#define avpriv_request_sample(...)
This structure stores compressed data.
int width
picture width / height.
static int decode_sgirle8(AVCodecContext *avctx, uint8_t *dst, const uint8_t *src, int src_size, int width, int height, ptrdiff_t linesize)