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00023 #include "libavutil/intreadwrite.h"
00024 #include "avcodec.h"
00025 #include "internal.h"
00026
00027 static av_cold int v308_encode_init(AVCodecContext *avctx)
00028 {
00029 if (avctx->width & 1) {
00030 av_log(avctx, AV_LOG_ERROR, "v308 requires width to be even.\n");
00031 return AVERROR_INVALIDDATA;
00032 }
00033
00034 avctx->coded_frame = avcodec_alloc_frame();
00035
00036 if (!avctx->coded_frame) {
00037 av_log(avctx, AV_LOG_ERROR, "Could not allocate frame.\n");
00038 return AVERROR(ENOMEM);
00039 }
00040
00041 return 0;
00042 }
00043
00044 static int v308_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
00045 const AVFrame *pic, int *got_packet)
00046 {
00047 uint8_t *dst;
00048 uint8_t *y, *u, *v;
00049 int i, j, ret;
00050
00051 if ((ret = ff_alloc_packet2(avctx, pkt, avctx->width * avctx->height * 3)) < 0)
00052 return ret;
00053 dst = pkt->data;
00054
00055 avctx->coded_frame->reference = 0;
00056 avctx->coded_frame->key_frame = 1;
00057 avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;
00058
00059 y = pic->data[0];
00060 u = pic->data[1];
00061 v = pic->data[2];
00062
00063 for (i = 0; i < avctx->height; i++) {
00064 for (j = 0; j < avctx->width; j++) {
00065 *dst++ = v[j];
00066 *dst++ = y[j];
00067 *dst++ = u[j];
00068 }
00069 y += pic->linesize[0];
00070 u += pic->linesize[1];
00071 v += pic->linesize[2];
00072 }
00073
00074 pkt->flags |= AV_PKT_FLAG_KEY;
00075 *got_packet = 1;
00076 return 0;
00077 }
00078
00079 static av_cold int v308_encode_close(AVCodecContext *avctx)
00080 {
00081 av_freep(&avctx->coded_frame);
00082
00083 return 0;
00084 }
00085
00086 AVCodec ff_v308_encoder = {
00087 .name = "v308",
00088 .type = AVMEDIA_TYPE_VIDEO,
00089 .id = CODEC_ID_V308,
00090 .init = v308_encode_init,
00091 .encode2 = v308_encode_frame,
00092 .close = v308_encode_close,
00093 .pix_fmts = (const enum PixelFormat[]){ PIX_FMT_YUV444P, PIX_FMT_NONE },
00094 .long_name = NULL_IF_CONFIG_SMALL("Uncompressed packed 4:4:4"),
00095 };