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avcodec/mjpegenc: drop dependancy on sizeof(AVFrame)

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-12-17 16:27:36 +01:00
parent c81234651f
commit 5b3f4b3ef5
1 changed files with 9 additions and 5 deletions
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14
libavcodec/mjpegenc.c
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@ -537,8 +537,8 @@ static int amv_encode_picture(AVCodecContext *avctx, AVPacket *pkt,
{
MpegEncContext *s = avctx->priv_data;
AVFrame pic = *pic_arg;
int i;
AVFrame *pic;
int i, ret;
int chroma_h_shift, chroma_v_shift;
av_pix_fmt_get_chroma_sub_sample(avctx->pix_fmt, &chroma_h_shift, &chroma_v_shift);
@ -547,13 +547,17 @@ static int amv_encode_picture(AVCodecContext *avctx, AVPacket *pkt,
if(s->avctx->flags & CODEC_FLAG_EMU_EDGE)
return -1;
pic = av_frame_alloc();
av_frame_ref(pic, pic_arg);
//picture should be flipped upside-down
for(i=0; i < 3; i++) {
int vsample = i ? 2 >> chroma_v_shift : 2;
pic.data[i] += (pic.linesize[i] * (vsample * (8 * s->mb_height -((s->height/V_MAX)&7)) - 1 ));
pic.linesize[i] *= -1;
pic->data[i] += (pic->linesize[i] * (vsample * (8 * s->mb_height -((s->height/V_MAX)&7)) - 1 ));
pic->linesize[i] *= -1;
}
return ff_MPV_encode_picture(avctx, pkt, &pic, got_packet);
ret = ff_MPV_encode_picture(avctx, pkt, pic, got_packet);
av_frame_free(&pic);
return ret;
}
#if CONFIG_MJPEG_ENCODER