57 for (
i = 0;
i <
s->palette_size / 4;
i++) {
58 s->palette[
i] = 0xFFU << 24 |
AV_RL32(ptr);
81 void *
data,
int *got_frame,
85 int buf_size = avpkt->
size;
87 int compr,
i,
stride, psize, ret;
102 case MKTAG(
'A',
'A',
'S',
'4'):
106 case MKTAG(
'A',
'A',
'S',
'C'):
110 if (buf_size < stride * avctx->
height)
112 for (
i = avctx->
height - 1;
i >= 0;
i--) {
113 memcpy(
s->frame->data[0] +
i *
s->frame->linesize[0], buf, avctx->
width * psize);
133 memcpy(
s->frame->data[1],
s->palette,
s->palette_size);
static av_cold int aasc_decode_init(AVCodecContext *avctx)
static int aasc_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
static av_cold int aasc_decode_end(AVCodecContext *avctx)
Libavcodec external API header.
static av_cold int init(AVCodecContext *avctx)
static av_always_inline void bytestream2_init(GetByteContext *g, const uint8_t *buf, int buf_size)
#define MKTAG(a, b, c, d)
int ff_reget_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
Identical in function to ff_get_buffer(), except it reuses the existing buffer if available.
static void decode(AVCodecContext *dec_ctx, AVPacket *pkt, AVFrame *frame, FILE *outfile)
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() or get_encode_buffer() for allocating buffers and supports custom allocators.
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
int av_frame_ref(AVFrame *dst, const AVFrame *src)
Set up a new reference to the data described by the source frame.
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
AVFrame * av_frame_alloc(void)
Allocate an AVFrame and set its fields to default values.
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
#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.
int ff_msrle_decode(AVCodecContext *avctx, AVFrame *pic, int depth, GetByteContext *gb)
Decode stream in MS RLE format into frame.
@ AV_PIX_FMT_RGB555LE
packed RGB 5:5:5, 16bpp, (msb)1X 5R 5G 5B(lsb), little-endian, X=unused/undefined
@ AV_PIX_FMT_PAL8
8 bits with AV_PIX_FMT_RGB32 palette
@ AV_PIX_FMT_BGR24
packed RGB 8:8:8, 24bpp, BGRBGR...
main external API structure.
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
int width
picture width / height.
unsigned int codec_tag
fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
int bits_per_coded_sample
bits per sample/pixel from the demuxer (needed for huffyuv).
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
const char * name
Name of the codec implementation.
This structure describes decoded (raw) audio or video data.
This structure stores compressed data.
uint32_t palette[AVPALETTE_COUNT]