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Unified Diff: patched-ffmpeg-mt/libavcodec/dnxhddec.c

Issue 789004: ffmpeg roll of source to mar 9 version... (Closed) Base URL: svn://chrome-svn/chrome/trunk/deps/third_party/ffmpeg/
Patch Set: '' Created 10 years, 9 months ago
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Index: patched-ffmpeg-mt/libavcodec/dnxhddec.c
===================================================================
--- patched-ffmpeg-mt/libavcodec/dnxhddec.c (revision 41250)
+++ patched-ffmpeg-mt/libavcodec/dnxhddec.c (working copy)
@@ -39,7 +39,7 @@
VLC ac_vlc, dc_vlc, run_vlc;
int last_dc[3];
DSPContext dsp;
- DECLARE_ALIGNED_16(DCTELEM, blocks)[8][64];
+ DECLARE_ALIGNED(16, DCTELEM, blocks)[8][64];
ScanTable scantable;
const CIDEntry *cid_table;
} DNXHDContext;
@@ -126,12 +126,17 @@
ctx->mb_width = ctx->width>>4;
ctx->mb_height = buf[0x16d];
- if (ctx->mb_height > 68) {
- av_log(ctx->avctx, AV_LOG_ERROR, "mb height too big\n");
+ dprintf(ctx->avctx, "mb width %d, mb height %d\n", ctx->mb_width, ctx->mb_height);
+
+ if ((ctx->height+15)>>4 == ctx->mb_height && ctx->picture.interlaced_frame)
+ ctx->height <<= 1;
+
+ if (ctx->mb_height > 68 ||
+ (ctx->mb_height<<ctx->picture.interlaced_frame) > (ctx->height+15)>>4) {
+ av_log(ctx->avctx, AV_LOG_ERROR, "mb height too big: %d\n", ctx->mb_height);
return -1;
}
- dprintf(ctx->avctx, "mb width %d, mb height %d\n", ctx->mb_width, ctx->mb_height);
for (i = 0; i < ctx->mb_height; i++) {
ctx->mb_scan_index[i] = AV_RB32(buf + 0x170 + (i<<2));
dprintf(ctx->avctx, "mb scan index %d\n", ctx->mb_scan_index[i]);
@@ -292,6 +297,13 @@
if (dnxhd_decode_header(ctx, buf, buf_size, first_field) < 0)
return -1;
+ if ((avctx->width || avctx->height) &&
+ (ctx->width != avctx->width || ctx->height != avctx->height)) {
+ av_log(avctx, AV_LOG_WARNING, "frame size changed: %dx%d -> %dx%d\n",
+ avctx->width, avctx->height, ctx->width, ctx->height);
+ first_field = 1;
+ }
+
avctx->pix_fmt = PIX_FMT_YUV422P;
if (avcodec_check_dimensions(avctx, ctx->width, ctx->height))
return -1;

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