41 int transparent,
interlaced = 1, skip, opaque_length, i, j, k;
44 while (extradata_size >= 24) {
45 uint32_t atom_size =
AV_RB32(extradata);
46 if (!memcmp(&extradata[4],
"APRGAPRG0001", 12)) {
47 interlaced = extradata[19] != 1;
50 if (atom_size && atom_size <= extradata_size) {
51 extradata += atom_size;
52 extradata_size -= atom_size;
57 if (avctx->
height == 486) {
62 opaque_length = 2 * avctx->
width * (avctx->
height + skip) + 4 * interlaced;
63 if (avpkt->
size < opaque_length) {
68 avpkt->
size >= opaque_length * 2 + 4;
69 srca = src + opaque_length + 5;
78 src += avctx->
width * skip;
79 srca += avctx->
width * skip;
82 for (i = 0; i < interlaced + 1; i++) {
83 src += avctx->
width * skip;
84 srca += avctx->
width * skip;
85 if (interlaced && avctx->
height == 486) {
98 for (k = 0; k < avctx->
width >> 1; k++) {
101 a[2 * k ] = 0xFF - (transparent ? *srca++ : 0);
104 y[2 * k + 1] = *src++;
105 a[2 * k + 1] = 0xFF - (transparent ? *srca++ : 0);
109 y += (interlaced + 1) * pic->
linesize[0];
110 u += (interlaced + 1) * pic->
linesize[1];
111 v += (interlaced + 1) * pic->
linesize[2];
112 a += (interlaced + 1) * pic->
linesize[3];
This structure describes decoded (raw) audio or video data.
ptrdiff_t const GLvoid * data
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
#define FF_CODEC_CAP_INIT_THREADSAFE
The codec does not modify any global variables in the init function, allowing to call the init functi...
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
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
int bits_per_coded_sample
bits per sample/pixel from the demuxer (needed for huffyuv).
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
#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.
static int avui_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
enum AVPictureType pict_type
Picture type of the frame.
int width
picture width / height.
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.
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
common internal api header.
int key_frame
1 -> keyframe, 0-> not
This structure stores compressed data.
static av_cold int avui_decode_init(AVCodecContext *avctx)
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.