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mss3: make code independent of sizeof(AVFrame) 

Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2013-07-29 15:27:05 +00:00
parent 02fe531afe
commit ff1c13b133
1 changed files with 21 additions and 17 deletions
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38
libavcodec/mss3.c
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@ -108,7 +108,7 @@ typedef struct HaarBlockCoder {
typedef struct MSS3Context {
AVCodecContext *avctx;
AVFrame pic;
AVFrame *pic;
int got_error;
RangeCoder coder;
@ -731,12 +731,12 @@ static int mss3_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
return buf_size;
c->got_error = 0;
if ((ret = ff_reget_buffer(avctx, &c->pic)) < 0)
if ((ret = ff_reget_buffer(avctx, c->pic)) < 0)
return ret;
c->pic.key_frame = keyframe;
c->pic.pict_type = keyframe ? AV_PICTURE_TYPE_I : AV_PICTURE_TYPE_P;
c->pic->key_frame = keyframe;
c->pic->pict_type = keyframe ? AV_PICTURE_TYPE_I : AV_PICTURE_TYPE_P;
if (!bytestream2_get_bytes_left(&gb)) {
if ((ret = av_frame_ref(data, &c->pic)) < 0)
if ((ret = av_frame_ref(data, c->pic)) < 0)
return ret;
*got_frame = 1;
@ -749,9 +749,9 @@ static int mss3_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
mb_width = dec_width >> 4;
mb_height = dec_height >> 4;
dst[0] = c->pic.data[0] + dec_x + dec_y * c->pic.linesize[0];
dst[1] = c->pic.data[1] + dec_x / 2 + (dec_y / 2) * c->pic.linesize[1];
dst[2] = c->pic.data[2] + dec_x / 2 + (dec_y / 2) * c->pic.linesize[2];
dst[0] = c->pic->data[0] + dec_x + dec_y * c->pic->linesize[0];
dst[1] = c->pic->data[1] + dec_x / 2 + (dec_y / 2) * c->pic->linesize[1];
dst[2] = c->pic->data[2] + dec_x / 2 + (dec_y / 2) * c->pic->linesize[2];
for (y = 0; y < mb_height; y++) {
for (x = 0; x < mb_width; x++) {
for (i = 0; i < 3; i++) {
@ -762,23 +762,23 @@ static int mss3_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
case FILL_BLOCK:
decode_fill_block(acoder, c->fill_coder + i,
dst[i] + x * blk_size,
c->pic.linesize[i], blk_size);
c->pic->linesize[i], blk_size);
break;
case IMAGE_BLOCK:
decode_image_block(acoder, c->image_coder + i,
dst[i] + x * blk_size,
c->pic.linesize[i], blk_size);
c->pic->linesize[i], blk_size);
break;
case DCT_BLOCK:
decode_dct_block(acoder, c->dct_coder + i,
dst[i] + x * blk_size,
c->pic.linesize[i], blk_size,
c->pic->linesize[i], blk_size,
c->dctblock, x, y);
break;
case HAAR_BLOCK:
decode_haar_block(acoder, c->haar_coder + i,
dst[i] + x * blk_size,
c->pic.linesize[i], blk_size,
c->pic->linesize[i], blk_size,
c->hblock);
break;
}
@ -790,12 +790,12 @@ static int mss3_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
}
}
}
dst[0] += c->pic.linesize[0] * 16;
dst[1] += c->pic.linesize[1] * 8;
dst[2] += c->pic.linesize[2] * 8;
dst[0] += c->pic->linesize[0] * 16;
dst[1] += c->pic->linesize[1] * 8;
dst[2] += c->pic->linesize[2] * 8;
}
if ((ret = av_frame_ref(data, &c->pic)) < 0)
if ((ret = av_frame_ref(data, c->pic)) < 0)
return ret;
*got_frame = 1;
@ -809,6 +809,9 @@ static av_cold int mss3_decode_init(AVCodecContext *avctx)
int i;
c->avctx = avctx;
c->pic = av_frame_alloc();
if (!c->pic)
return AVERROR(ENOMEM);
if ((avctx->width & 0xF) || (avctx->height & 0xF)) {
av_log(avctx, AV_LOG_ERROR,
@ -826,6 +829,7 @@ static av_cold int mss3_decode_init(AVCodecContext *avctx)
b_width * b_height);
if (!c->dct_coder[i].prev_dc) {
av_log(avctx, AV_LOG_ERROR, "Cannot allocate buffer\n");
av_frame_free(&c->pic);
while (i >= 0) {
av_freep(&c->dct_coder[i].prev_dc);
i--;
@ -846,7 +850,7 @@ static av_cold int mss3_decode_end(AVCodecContext *avctx)
MSS3Context * const c = avctx->priv_data;
int i;
av_frame_unref(&c->pic);
av_frame_free(&c->pic);
for (i = 0; i < 3; i++)
av_freep(&c->dct_coder[i].prev_dc);