diff options
Diffstat (limited to 'contrib')
| -rw-r--r-- | contrib/ffmpeg/A04-dca-resync.patch | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/contrib/ffmpeg/A04-dca-resync.patch b/contrib/ffmpeg/A04-dca-resync.patch index 3e32c7a74..bbd9ad7ed 100644 --- a/contrib/ffmpeg/A04-dca-resync.patch +++ b/contrib/ffmpeg/A04-dca-resync.patch @@ -1,17 +1,17 @@ -From 021a7700ff839b295b5776d4552563de1a448df6 Mon Sep 17 00:00:00 2001 +From 9922584ba3b5b02d913e629ea74d72e994870873 Mon Sep 17 00:00:00 2001 From: John Stebbins <[email protected]> -Date: Sat, 5 Jan 2013 16:57:06 -0800 +Date: Thu, 17 Jan 2013 19:57:26 +0100 Subject: [PATCH] dca_parser: Handle changes in dca frame size A change in framesize caused a perpetual loss of synchronization. So read (and use) the frame size from the frame header instead of setting it only once. --- - libavcodec/dca_parser.c | 13 ++++++++----- - 1 file changed, 8 insertions(+), 5 deletions(-) + libavcodec/dca_parser.c | 15 +++++++++------ + 1 file changed, 9 insertions(+), 6 deletions(-) diff --git a/libavcodec/dca_parser.c b/libavcodec/dca_parser.c -index ab235cf..75e9321 100644 +index ab235cf..12180f3 100644 --- a/libavcodec/dca_parser.c +++ b/libavcodec/dca_parser.c @@ -62,10 +62,12 @@ static int dca_find_frame_end(DCAParseContext * pc1, const uint8_t * buf, @@ -46,17 +46,19 @@ index ab235cf..75e9321 100644 { GetBitContext gb; uint8_t hdr[12 + FF_INPUT_BUFFER_PADDING_SIZE] = { 0 }; -@@ -159,6 +158,10 @@ static int dca_parse_params(const uint8_t *buf, int buf_size, int *duration, +@@ -159,7 +158,11 @@ static int dca_parse_params(const uint8_t *buf, int buf_size, int *duration, return AVERROR_INVALIDDATA; *duration = 256 * (sample_blocks / 8); +- skip_bits(&gb, 20); + *framesize = get_bits(&gb, 14) + 1; + if (*framesize < 95) + return AVERROR_INVALIDDATA; + - skip_bits(&gb, 20); ++ skip_bits(&gb, 6); sr_code = get_bits(&gb, 4); *sample_rate = avpriv_dca_sample_rates[sr_code]; + if (*sample_rate == 0) @@ -190,7 +193,7 @@ static int dca_parse(AVCodecParserContext * s, } |