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vmnc: make code independent of sizeof(AVFrame)

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Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2013-07-26 13:39:40 +00:00
parent af2a196e66
commit cf5ab8b6f7
1 changed files with 21 additions and 19 deletions
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40
libavcodec/vmnc.c
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@ -56,7 +56,7 @@ enum HexTile_Flags {
*/
typedef struct VmncContext {
AVCodecContext *avctx;
AVFrame pic;
AVFrame *frame;
int bpp;
int bpp2;
@ -295,12 +295,13 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
uint8_t *outptr;
const uint8_t *src = buf;
int dx, dy, w, h, depth, enc, chunks, res, size_left, ret;
AVFrame *frame = c->frame;
if ((ret = ff_reget_buffer(avctx, &c->pic)) < 0)
if ((ret = ff_reget_buffer(avctx, frame)) < 0)
return ret;
c->pic.key_frame = 0;
c->pic.pict_type = AV_PICTURE_TYPE_P;
frame->key_frame = 0;
frame->pict_type = AV_PICTURE_TYPE_P;
//restore screen after cursor
if(c->screendta) {
@ -320,10 +321,10 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
dy = 0;
}
if((w > 0) && (h > 0)) {
outptr = c->pic.data[0] + dx * c->bpp2 + dy * c->pic.linesize[0];
outptr = frame->data[0] + dx * c->bpp2 + dy * frame->linesize[0];
for(i = 0; i < h; i++) {
memcpy(outptr, c->screendta + i * c->cur_w * c->bpp2, w * c->bpp2);
outptr += c->pic.linesize[0];
outptr += frame->linesize[0];
}
}
}
@ -339,7 +340,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
w = AV_RB16(src); src += 2;
h = AV_RB16(src); src += 2;
enc = AV_RB32(src); src += 4;
outptr = c->pic.data[0] + dx * c->bpp2 + dy * c->pic.linesize[0];
outptr = frame->data[0] + dx * c->bpp2 + dy * frame->linesize[0];
size_left = buf_size - (src - buf);
switch(enc) {
case MAGIC_WMVd: // cursor
@ -380,8 +381,8 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
src += 4;
break;
case MAGIC_WMVi: // ServerInitialization struct
c->pic.key_frame = 1;
c->pic.pict_type = AV_PICTURE_TYPE_I;
frame->key_frame = 1;
frame->pict_type = AV_PICTURE_TYPE_I;
depth = *src++;
if(depth != c->bpp) {
av_log(avctx, AV_LOG_INFO, "Depth mismatch. Container %i bpp, Frame data: %i bpp\n", c->bpp, depth);
@ -407,7 +408,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
av_log(avctx, AV_LOG_ERROR, "Premature end of data! (need %i got %i)\n", w * h * c->bpp2, size_left);
return -1;
}
paint_raw(outptr, w, h, src, c->bpp2, c->bigendian, c->pic.linesize[0]);
paint_raw(outptr, w, h, src, c->bpp2, c->bigendian, frame->linesize[0]);
src += w * h * c->bpp2;
break;
case 0x00000005: // HexTile encoded rectangle
@ -415,7 +416,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
av_log(avctx, AV_LOG_ERROR, "Incorrect frame size: %ix%i+%ix%i of %ix%i\n", w, h, dx, dy, c->width, c->height);
return -1;
}
res = decode_hextile(c, outptr, src, size_left, w, h, c->pic.linesize[0]);
res = decode_hextile(c, outptr, src, size_left, w, h, frame->linesize[0]);
if(res < 0)
return -1;
src += res;
@ -443,17 +444,17 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
dy = 0;
}
if((w > 0) && (h > 0)) {
outptr = c->pic.data[0] + dx * c->bpp2 + dy * c->pic.linesize[0];
outptr = frame->data[0] + dx * c->bpp2 + dy * frame->linesize[0];
for(i = 0; i < h; i++) {
memcpy(c->screendta + i * c->cur_w * c->bpp2, outptr, w * c->bpp2);
outptr += c->pic.linesize[0];
outptr += frame->linesize[0];
}
outptr = c->pic.data[0];
put_cursor(outptr, c->pic.linesize[0], c, c->cur_x, c->cur_y);
outptr = frame->data[0];
put_cursor(outptr, frame->linesize[0], c, c->cur_x, c->cur_y);
}
}
*got_frame = 1;
if ((ret = av_frame_ref(data, &c->pic)) < 0)
if ((ret = av_frame_ref(data, frame)) < 0)
return ret;
/* always report that the buffer was completely consumed */
@ -478,7 +479,6 @@ static av_cold int decode_init(AVCodecContext *avctx)
c->bpp = avctx->bits_per_coded_sample;
c->bpp2 = c->bpp/8;
avcodec_get_frame_defaults(&c->pic);
switch(c->bpp){
case 8:
@ -495,7 +495,9 @@ static av_cold int decode_init(AVCodecContext *avctx)
return AVERROR_INVALIDDATA;
}
avcodec_get_frame_defaults(&c->pic);
c->frame = av_frame_alloc();
if (!c->frame)
return AVERROR(ENOMEM);
return 0;
}
@ -511,7 +513,7 @@ static av_cold int decode_end(AVCodecContext *avctx)
{
VmncContext * const c = avctx->priv_data;
av_frame_unref(&c->pic);
av_frame_free(&c->frame);
av_free(c->curbits);
av_free(c->curmask);