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mss3: use the AVFrame API properly.

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This commit is contained in:
Anton Khirnov 2013-11-09 10:14:46 +01:00
parent e9198f61db
commit 207909911d
1 changed files with 34 additions and 28 deletions
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62
libavcodec/mss3.c
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@ -108,7 +108,7 @@ typedef struct HaarBlockCoder {
typedef struct MSS3Context { typedef struct MSS3Context {
AVCodecContext *avctx; AVCodecContext *avctx;
AVFrame pic; AVFrame *pic;
int got_error; int got_error;
RangeCoder coder; RangeCoder coder;
@ -731,14 +731,14 @@ static int mss3_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
return buf_size; return buf_size;
c->got_error = 0; c->got_error = 0;
if ((ret = ff_reget_buffer(avctx, &c->pic)) < 0) { if ((ret = ff_reget_buffer(avctx, c->pic)) < 0) {
av_log(avctx, AV_LOG_ERROR, "reget_buffer() failed\n"); av_log(avctx, AV_LOG_ERROR, "reget_buffer() failed\n");
return ret; return ret;
} }
c->pic.key_frame = keyframe; c->pic->key_frame = keyframe;
c->pic.pict_type = keyframe ? AV_PICTURE_TYPE_I : AV_PICTURE_TYPE_P; c->pic->pict_type = keyframe ? AV_PICTURE_TYPE_I : AV_PICTURE_TYPE_P;
if (!bytestream2_get_bytes_left(&gb)) { 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; return ret;
*got_frame = 1; *got_frame = 1;
@ -751,9 +751,9 @@ static int mss3_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
mb_width = dec_width >> 4; mb_width = dec_width >> 4;
mb_height = dec_height >> 4; mb_height = dec_height >> 4;
dst[0] = c->pic.data[0] + dec_x + dec_y * c->pic.linesize[0]; 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[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[2] = c->pic->data[2] + dec_x / 2 + (dec_y / 2) * c->pic->linesize[2];
for (y = 0; y < mb_height; y++) { for (y = 0; y < mb_height; y++) {
for (x = 0; x < mb_width; x++) { for (x = 0; x < mb_width; x++) {
for (i = 0; i < 3; i++) { for (i = 0; i < 3; i++) {
@ -764,23 +764,23 @@ static int mss3_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
case FILL_BLOCK: case FILL_BLOCK:
decode_fill_block(acoder, c->fill_coder + i, decode_fill_block(acoder, c->fill_coder + i,
dst[i] + x * blk_size, dst[i] + x * blk_size,
c->pic.linesize[i], blk_size); c->pic->linesize[i], blk_size);
break; break;
case IMAGE_BLOCK: case IMAGE_BLOCK:
decode_image_block(acoder, c->image_coder + i, decode_image_block(acoder, c->image_coder + i,
dst[i] + x * blk_size, dst[i] + x * blk_size,
c->pic.linesize[i], blk_size); c->pic->linesize[i], blk_size);
break; break;
case DCT_BLOCK: case DCT_BLOCK:
decode_dct_block(acoder, c->dct_coder + i, decode_dct_block(acoder, c->dct_coder + i,
dst[i] + x * blk_size, dst[i] + x * blk_size,
c->pic.linesize[i], blk_size, c->pic->linesize[i], blk_size,
c->dctblock, x, y); c->dctblock, x, y);
break; break;
case HAAR_BLOCK: case HAAR_BLOCK:
decode_haar_block(acoder, c->haar_coder + i, decode_haar_block(acoder, c->haar_coder + i,
dst[i] + x * blk_size, dst[i] + x * blk_size,
c->pic.linesize[i], blk_size, c->pic->linesize[i], blk_size,
c->hblock); c->hblock);
break; break;
} }
@ -792,12 +792,12 @@ static int mss3_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
} }
} }
} }
dst[0] += c->pic.linesize[0] * 16; dst[0] += c->pic->linesize[0] * 16;
dst[1] += c->pic.linesize[1] * 8; dst[1] += c->pic->linesize[1] * 8;
dst[2] += c->pic.linesize[2] * 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; return ret;
*got_frame = 1; *got_frame = 1;
@ -805,6 +805,18 @@ static int mss3_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
return buf_size; return buf_size;
} }
static av_cold int mss3_decode_end(AVCodecContext *avctx)
{
MSS3Context * const c = avctx->priv_data;
int i;
av_frame_free(&c->pic);
for (i = 0; i < 3; i++)
av_freep(&c->dct_coder[i].prev_dc);
return 0;
}
static av_cold int mss3_decode_init(AVCodecContext *avctx) static av_cold int mss3_decode_init(AVCodecContext *avctx)
{ {
MSS3Context * const c = avctx->priv_data; MSS3Context * const c = avctx->priv_data;
@ -836,6 +848,12 @@ static av_cold int mss3_decode_init(AVCodecContext *avctx)
} }
} }
c->pic = av_frame_alloc();
if (!c->pic) {
mss3_decode_end(avctx);
return AVERROR(ENOMEM);
}
avctx->pix_fmt = AV_PIX_FMT_YUV420P; avctx->pix_fmt = AV_PIX_FMT_YUV420P;
init_coders(c); init_coders(c);
@ -843,18 +861,6 @@ static av_cold int mss3_decode_init(AVCodecContext *avctx)
return 0; return 0;
} }
static av_cold int mss3_decode_end(AVCodecContext *avctx)
{
MSS3Context * const c = avctx->priv_data;
int i;
av_frame_unref(&c->pic);
for (i = 0; i < 3; i++)
av_freep(&c->dct_coder[i].prev_dc);
return 0;
}
AVCodec ff_msa1_decoder = { AVCodec ff_msa1_decoder = {
.name = "msa1", .name = "msa1",
.long_name = NULL_IF_CONFIG_SMALL("MS ATC Screen"), .long_name = NULL_IF_CONFIG_SMALL("MS ATC Screen"),