84 void *
data,
int *got_frame,
88 int buf_size = avpkt->
size;
104 s->frame->palette_has_changed = 1;
125 for (j = 0; j < avctx->
width - 1; j += 2) {
126 ptr[j+0] = buf[j>>1] >> 4;
127 ptr[j+1] = buf[j>>1] & 0xF;
129 if (avctx->
width & 1)
130 ptr[j+0] = buf[j>>1] >> 4;
132 memcpy(ptr, buf, linesize);
135 ptr +=
s->frame->linesize[0];
static void flush(AVCodecContext *avctx)
Libavcodec external API header.
uint8_t * av_packet_get_side_data(const AVPacket *pkt, enum AVPacketSideDataType type, buffer_size_t *size)
static av_cold int init(AVCodecContext *avctx)
static av_always_inline void bytestream2_init(GetByteContext *g, const uint8_t *buf, int buf_size)
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.
@ AV_PKT_DATA_PALETTE
An AV_PKT_DATA_PALETTE side data packet contains exactly AVPALETTE_SIZE bytes worth of palette.
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
void av_frame_unref(AVFrame *frame)
Unreference all the buffers referenced by frame and reset the frame fields.
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.
int av_image_get_linesize(enum AVPixelFormat pix_fmt, int width, int plane)
Compute the size of an image line with format pix_fmt and width width for the plane plane.
common internal API header
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
static int msrle_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
static void msrle_decode_flush(AVCodecContext *avctx)
static av_cold int msrle_decode_end(AVCodecContext *avctx)
static av_cold int msrle_decode_init(AVCodecContext *avctx)
int ff_msrle_decode(AVCodecContext *avctx, AVFrame *pic, int depth, GetByteContext *gb)
Decode stream in MS RLE format into frame.
@ AV_PIX_FMT_PAL8
8 bits with AV_PIX_FMT_RGB32 palette
@ AV_PIX_FMT_BGR24
packed RGB 8:8:8, 24bpp, BGRBGR...
@ AV_PIX_FMT_MONOWHITE
Y , 1bpp, 0 is white, 1 is black, in each byte pixels are ordered from the msb to the lsb.
main external API structure.
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
int width
picture width / height.
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.