39 const AVFrame *pic,
int *got_packet)
56 for (i = 0; i < avctx->
height + 1 >> 1; i++) {
57 for (j = 0; j < avctx->
width + 1 >> 1; j++) {
61 *dst++ = y[ 2 * j + 1];
62 *dst++ = y[pic->
linesize[0] + 2 * j ];
63 *dst++ = y[pic->
linesize[0] + 2 * j + 1];
int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int64_t size)
Check AVPacket size and/or allocate data.
This structure describes decoded (raw) audio or video data.
AVFrame * avcodec_alloc_frame(void)
Allocate an AVFrame and set its fields to default values.
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...
void av_freep(void *ptr)
Free a memory block which has been allocated with av_malloc(z)() or av_realloc() and set the pointer ...
const char * name
Name of the codec implementation.
static av_cold int yuv4_encode_init(AVCodecContext *avctx)
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
#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. ...
static int yuv4_encode_frame(AVCodecContext *avctx, AVPacket *pkt, const AVFrame *pic, int *got_packet)
Libavcodec external API header.
AVPixelFormat
Pixel format.
int flags
A combination of AV_PKT_FLAG values.
enum AVPictureType pict_type
Picture type of the frame.
int width
picture width / height.
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
main external API structure.
AVFrame * coded_frame
the picture in the bitstream
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
common internal api header.
int key_frame
1 -> keyframe, 0-> not
static av_cold int yuv4_encode_close(AVCodecContext *avctx)
This structure stores compressed data.
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.