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| author | Baptiste Coudurier <baptiste.coudurier@gmail.com> | 2009-09-18 19:03:05 +0000 |
|---|---|---|
| committer | Baptiste Coudurier <baptiste.coudurier@gmail.com> | 2009-09-18 19:03:05 +0000 |
| commit | 301a24de52f5baa09beff0958327af2c2a7005dc (patch) | |
| tree | bed83d1705d36fc9430a0f1a90914e38a50d26ad /libavcodec/dnxhdenc.c | |
| parent | e9b0681610b346adc57bcbd2f55fdd2764908097 (diff) | |
| download | ffmpeg-301a24de52f5baa09beff0958327af2c2a7005dc.tar.gz | |
fix uninitialized memory in dnxhd encoder
Originally committed as revision 19912 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/dnxhdenc.c')
| -rw-r--r-- | libavcodec/dnxhdenc.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/libavcodec/dnxhdenc.c b/libavcodec/dnxhdenc.c index 113e8d176c..3e68ef2dcc 100644 --- a/libavcodec/dnxhdenc.c +++ b/libavcodec/dnxhdenc.c @@ -237,6 +237,8 @@ static int dnxhd_write_header(AVCodecContext *avctx, uint8_t *buf) DNXHDEncContext *ctx = avctx->priv_data; const uint8_t header_prefix[5] = { 0x00,0x00,0x02,0x80,0x01 }; + memset(buf, 0, 640); + memcpy(buf, header_prefix, 5); buf[5] = ctx->interlaced ? ctx->cur_field+2 : 0x01; buf[6] = 0x80; // crc flag off @@ -753,6 +755,9 @@ static int dnxhd_encode_picture(AVCodecContext *avctx, unsigned char *buf, int b avctx->execute(avctx, dnxhd_encode_thread, (void**)&ctx->thread[0], NULL, avctx->thread_count, sizeof(void*)); + assert(640 + offset + 4 <= ctx->cid_table->coding_unit_size); + memset(buf + 640 + offset, 0, ctx->cid_table->coding_unit_size - 4 - offset - 640); + AV_WB32(buf + ctx->cid_table->coding_unit_size - 4, 0x600DC0DE); // EOF if (ctx->interlaced && first_field) { |