47 const uint32_t *src= (
const uint32_t *)avpkt->
data;
48 uint16_t *ydst, *udst, *vdst, *yend;
66 ydst= (uint16_t *)pic->
data[0];
67 udst= (uint16_t *)pic->
data[1];
68 vdst= (uint16_t *)pic->
data[2];
75 *udst++= (v>>16) & 0xFFC0;
76 *ydst++= (v>>6 ) & 0xFFC0;
77 *vdst++= (v<<4 ) & 0xFFC0;
80 *ydst++= (v>>16) & 0xFFC0;
91 *udst++= (v>>6 ) & 0xFFC0;
92 *ydst++= (v<<4 ) & 0xFFC0;
95 *vdst++= (v>>16) & 0xFFC0;
96 *ydst++= (v>>6 ) & 0xFFC0;
100 udst+= pic->
linesize[1]/2 - width/2;
101 vdst+= pic->
linesize[2]/2 - width/2;
107 *udst++= (v<<4 ) & 0xFFC0;
110 *ydst++= (v>>16) & 0xFFC0;
111 *vdst++= (v>>6 ) & 0xFFC0;
112 *ydst++= (v<<4 ) & 0xFFC0;
115 udst+= pic->
linesize[1]/2 - width/2;
116 vdst+= pic->
linesize[2]/2 - width/2;
This structure describes decoded (raw) audio or video data.
void(* release_buffer)(struct AVCodecContext *c, AVFrame *pic)
Called to release buffers which were allocated with get_buffer.
memory handling functions
AVFrame * coded_frame
the picture in the bitstream
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
int bits_per_raw_sample
Bits per sample/pixel of internal libavcodec pixel/sample format.
void av_freep(void *arg)
Free a memory block which has been allocated with av_malloc(z)() or av_realloc() and set the pointer ...
void av_log_ask_for_sample(void *avc, const char *msg,...) av_printf_format(2
Log a generic warning message asking for a sample.
int reference
is this picture used as reference The values for this are the same as the MpegEncContext.picture_structure variable, that is 1->top field, 2->bottom field, 3->frame/both fields.
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
void av_log(void *avcl, int level, const char *fmt,...)
const char * name
Name of the codec implementation.
common internal API header
AVFrame * avcodec_alloc_frame(void)
Allocate an AVFrame and set its fields to default values.
enum AVPictureType pict_type
Picture type of the frame, see ?_TYPE below.
int width
picture width / height.
int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame)
Get a buffer for a frame.
static av_cold int decode_init(AVCodecContext *avctx)
int linesize[AV_NUM_DATA_POINTERS]
Size, in bytes, of the data for each picture/channel plane.
main external API structure.
#define AV_PIX_FMT_YUV422P16
static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
common internal api header.
int key_frame
1 -> keyframe, 0-> not
static av_cold int decode_close(AVCodecContext *avctx)
This structure stores compressed data.