diff options
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/dnxhddata.h | 15 | ||||
| -rw-r--r-- | libavcodec/dnxhddec.c | 2 |
2 files changed, 12 insertions, 5 deletions
diff --git a/libavcodec/dnxhddata.h b/libavcodec/dnxhddata.h index 3ae4683..2394e04 100644 --- a/libavcodec/dnxhddata.h +++ b/libavcodec/dnxhddata.h @@ -34,8 +34,6 @@ /** Frame headers, extra 0x00 added to end for parser */ #define DNXHD_HEADER_INITIAL 0x000002800100 #define DNXHD_HEADER_444 0x000002800200 -#define DNXHD_HEADER_HR1 0x000002800300 -#define DNXHD_HEADER_HR2 0x0000038C0300 /** Indicate that a CIDEntry value must be read in the bitstream */ #define DNXHD_VARIABLE 0 @@ -65,12 +63,21 @@ int ff_dnxhd_get_cid_table(int cid); int ff_dnxhd_find_cid(AVCodecContext *avctx, int bit_depth); void ff_dnxhd_print_profiles(AVCodecContext *avctx, int loglevel); +static av_always_inline uint64_t ff_dnxhd_check_header_prefix_hr(uint64_t prefix) +{ + uint64_t data_offset = prefix >> 16; + if ((prefix & 0xFFFF0000FFFFLL) == 0x0300 && + data_offset >= 0x0280 && data_offset <= 0x2170 && + data_offset % 4 == 0) + return prefix; + return 0; +} + static av_always_inline uint64_t ff_dnxhd_check_header_prefix(uint64_t prefix) { if (prefix == DNXHD_HEADER_INITIAL || prefix == DNXHD_HEADER_444 || - prefix == DNXHD_HEADER_HR1 || - prefix == DNXHD_HEADER_HR2) + ff_dnxhd_check_header_prefix_hr(prefix)) return prefix; return 0; } diff --git a/libavcodec/dnxhddec.c b/libavcodec/dnxhddec.c index 1808080..5b60326 100644 --- a/libavcodec/dnxhddec.c +++ b/libavcodec/dnxhddec.c @@ -275,7 +275,7 @@ static int dnxhd_decode_header(DNXHDContext *ctx, AVFrame *frame, ctx->bit_depth, ctx->mbaff, ctx->act); // Newer format supports variable mb_scan_index sizes - if (header_prefix == DNXHD_HEADER_HR2) { + if (ctx->mb_height > 68 && ff_dnxhd_check_header_prefix_hr(header_prefix)) { ctx->data_offset = 0x170 + (ctx->mb_height << 2); } else { if (ctx->mb_height > 68 || |
