44 const unsigned char *
buf;
83 void *
data,
int *got_frame,
87 int buf_size = avpkt->
size;
116 for (i = 0; i < avctx->
height; i++) {
118 for (j = 0; j < avctx->
width - 1; j += 2) {
119 ptr[j+0] = buf[j>>1] >> 4;
120 ptr[j+1] = buf[j>>1] & 0xF;
122 if (avctx->
width & 1)
123 ptr[j+0] = buf[j>>1] >> 4;
125 memcpy(ptr, buf, linesize);
This structure describes decoded (raw) audio or video data.
static av_cold int init(AVCodecContext *avctx)
void av_log(void *avcl, int level, const char *fmt,...) av_printf_format(3
Send the specified message to the log if the level is less than or equal to the current av_log_level...
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
static av_always_inline void bytestream2_init(GetByteContext *g, const uint8_t *buf, int buf_size)
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
packed RGB 8:8:8, 24bpp, BGRBGR...
const char * name
Name of the codec implementation.
int av_frame_ref(AVFrame *dst, AVFrame *src)
Setup a new reference to the data described by a given frame.
#define CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.
int bits_per_coded_sample
bits per sample/pixel from the demuxer (needed for huffyuv).
static int msrle_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
#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. ...
Libavcodec external API header.
int ff_reget_buffer(AVCodecContext *avctx, AVFrame *frame)
Identical in function to av_frame_make_writable(), except it uses ff_get_buffer() to allocate the buf...
void av_frame_unref(AVFrame *frame)
Unreference all the buffers referenced by frame and reset the frame fields.
uint8_t * av_packet_get_side_data(AVPacket *pkt, enum AVPacketSideDataType type, int *size)
Get side information from packet.
int width
picture width / height.
const unsigned char * buf
main external API structure.
static void close(AVCodecParserContext *s)
void avcodec_get_frame_defaults(AVFrame *frame)
Set the fields of the given AVFrame to default values.
int palette_has_changed
Tell user application that palette has changed from previous frame.
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Y , 1bpp, 0 is white, 1 is black, in each byte pixels are ordered from the msb to the lsb...
common internal api header.
int ff_msrle_decode(AVCodecContext *avctx, AVPicture *pic, int depth, GetByteContext *gb)
Decode stream in MS RLE format into frame.
#define AVERROR_INVALIDDATA
static int decode(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
static av_cold int msrle_decode_init(AVCodecContext *avctx)
8 bit with PIX_FMT_RGB32 palette
static av_cold int msrle_decode_end(AVCodecContext *avctx)
This structure stores compressed data.
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.