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Fraps v5 decoding support

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Originally committed as revision 12393 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Kostya Shishkov 2008-03-09 09:04:35 +00:00
parent 6a02cb8239
commit 8c908d7d61
1 changed files with 42 additions and 1 deletions
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43
libavcodec/fraps.c
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@ -148,7 +148,7 @@ static int decode_frame(AVCodecContext *avctx,
version = header & 0xff;
header_size = (header & (1<<30))? 8 : 4; /* bit 30 means pad to 8 bytes */
if (version > 2 && version != 4) {
if (version > 2 && version != 4 && version != 5) {
av_log(avctx, AV_LOG_ERROR,
"This file is encoded with Fraps version %d. " \
"This codec can only decode version 0, 1, 2 and 4.\n", version);
@ -288,6 +288,47 @@ static int decode_frame(AVCodecContext *avctx,
}
}
break;
case 5:
/* Virtually the same as version 4, but is for RGB24 */
avctx->pix_fmt = PIX_FMT_BGR24;
planes = 3;
f->reference = 1;
f->buffer_hints = FF_BUFFER_HINTS_VALID |
FF_BUFFER_HINTS_PRESERVE |
FF_BUFFER_HINTS_REUSABLE;
if (avctx->reget_buffer(avctx, f)) {
av_log(avctx, AV_LOG_ERROR, "reget_buffer() failed\n");
return -1;
}
/* skip frame */
if(buf_size == 8) {
f->pict_type = FF_P_TYPE;
f->key_frame = 0;
break;
}
f->pict_type = FF_I_TYPE;
f->key_frame = 1;
if ((AV_RL32(buf) != FPS_TAG)||(buf_size < (planes*1024 + 24))) {
av_log(avctx, AV_LOG_ERROR, "Fraps: error in data stream\n");
return -1;
}
for(i = 0; i < planes; i++) {
offs[i] = AV_RL32(buf + 4 + i * 4);
if(offs[i] >= buf_size || (i && offs[i] <= offs[i - 1] + 1024)) {
av_log(avctx, AV_LOG_ERROR, "Fraps: plane %i offset is out of bounds\n", i);
return -1;
}
}
offs[planes] = buf_size;
for(i = 0; i < planes; i++){
s->tmpbuf = av_realloc(s->tmpbuf, offs[i + 1] - offs[i] - 1024 + FF_INPUT_BUFFER_PADDING_SIZE);
if(fraps2_decode_plane(s, f->data[0] + i + (f->linesize[0] * (avctx->height - 1)), -f->linesize[0],
avctx->width, avctx->height, buf + offs[i], offs[i + 1] - offs[i], 1, 3) < 0) {
av_log(avctx, AV_LOG_ERROR, "Error decoding plane %i\n", i);
return -1;
}
}
break;
}
*frame = *f;