diff options
| author | Janne Grunau <janne-libav@jannau.net> | 2012-11-25 22:42:07 +0100 |
|---|---|---|
| committer | Janne Grunau <janne-libav@jannau.net> | 2012-12-18 19:48:30 +0100 |
| commit | f1d8763a02b5fce9a7d9789e049d74a45b15e1e8 (patch) | |
| tree | c319ee271c465de1c768fb61d6f51bea0c33d465 /libavcodec/mpegvideo.h | |
| parent | ed2d7d5868a4a5d914f1e5488d63ea696a3b2937 (diff) | |
mpegvideo: allocate scratch buffers after linesize is known
Since we can't know which stride a custom get_buffer() implementation is
going to use we have to allocate this scratch buffers after the linesize
is known. It was pretty safe for 8 bit per pixel pixel formats since we
always allocated memory for up to 16 bits per pixel. It broke hoever
with cmdutis.c's alloc_buffer() and high pixel bit depth since it
allocated larger edges than mpegvideo expected.
Fixes fuzzed sample nasa-8s2.ts_s244342.
Diffstat (limited to 'libavcodec/mpegvideo.h')
| -rw-r--r-- | libavcodec/mpegvideo.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/libavcodec/mpegvideo.h b/libavcodec/mpegvideo.h index 6c9a7cbda6..65997ce90b 100644 --- a/libavcodec/mpegvideo.h +++ b/libavcodec/mpegvideo.h @@ -759,6 +759,7 @@ void ff_MPV_common_defaults(MpegEncContext *s); void ff_MPV_decode_defaults(MpegEncContext *s); int ff_MPV_common_init(MpegEncContext *s); +int ff_mpv_frame_size_alloc(MpegEncContext *s, int linesize); int ff_MPV_common_frame_size_change(MpegEncContext *s); void ff_MPV_common_end(MpegEncContext *s); void ff_MPV_decode_mb(MpegEncContext *s, DCTELEM block[12][64]); @@ -782,7 +783,7 @@ void ff_write_quant_matrix(PutBitContext *pb, uint16_t *matrix); void ff_release_unused_pictures(MpegEncContext *s, int remove_current); int ff_find_unused_picture(MpegEncContext *s, int shared); void ff_denoise_dct(MpegEncContext *s, DCTELEM *block); -void ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src); +int ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src); int ff_MPV_lowest_referenced_row(MpegEncContext *s, int dir); void ff_MPV_report_decode_progress(MpegEncContext *s); int ff_mpeg_update_thread_context(AVCodecContext *dst, const AVCodecContext *src); |