FFmpeg

Commit Graph

Author	SHA1	Message	Date
Kostya Shishkov	b37d945dd4	mp3: fix start band index for block type 2 in 8kHz audio In hybrid frames long window part ends at 36 samples for most of the cases but at 72 for 8kHz case. For some reason decoder assumed it's 48 or even 36 samples, which caused wrong bitstream decoding for such blocks. l3_25207.mpg from conformance suite demonstrates it the best.	13 years ago
Diego Biurrun	aa3f2cb584	mpegaudiodec: Do not discard mp_decode_frame() return value. This fixes the warning: libavcodec/mpegaudiodec.c:1704:14: warning: variable ‘out_size’ set but not used	13 years ago
Kostya Shishkov	a05c41acd1	mp3dec: perform I/S and M/S only when frame mode is joint stereo. Looks like some LAME versions produce dual stereo mode MP3s with flags for intensity and middle stereo set. In this mode those flags should be ignored like the reference decoder and derived ones do.	13 years ago
Diego Biurrun	a92be9b856	Replace memset(0) by zero initializations. Also remove one pointless zero initialization in rangecoder.c.	13 years ago
Anton Khirnov	02beb9826b	lavc: deprecate AVCodecContext.sub_id. In most places where it's used, it's as a pointless write-only field. Only rv10 decoder actually reads from it, but it stores some internal version info in it. There is no reason for it to be in a public field.	13 years ago
Vitor Sessak	9b4cd58611	mpegaudiodec: use DSPUtil.butterflies_float(). Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	13 years ago
Dale Curtis	b716542691	mpegaudiodec: Prevent premature clipping of mp3 input buffer. Instead of clipping extrasize based on EXTRABYTES, clip based on the amount of buffer actually left. Without this fix, there are warbles and other distortions in the test case below. http://kevincennis.com/mix/assets/sounds/1901_voxfx.mp3	13 years ago
Ronald S. Bultje	3e13005cac	mp3on4: require a minimum framesize. If bufsize < headersize, init_get_bits() will be called with a negative number, causing it to fail and any subsequent call to get_bits() will crash because it reads from a NULL pointer. Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC: libav-stable@libav.org	13 years ago
Alex Converse	f372ce119b	mp3dec: Fix a heap-buffer-overflow In some cases, what is left to read from ptr is smaller than EXTRABYTES. Based on a patch by Thierry Foucu <tfoucu@gmail.com>. Signed-off-by: Alex Converse <alex.converse@gmail.com>	13 years ago
Anton Khirnov	ac84395d6a	lavc: remove disabled FF_API_PARSE_FRAME cruft.	13 years ago
Dustin Brody	d2a0041c20	mpegaudiodec: switch error detection check to AV_EF_BUFFER Signed-off-by: Anton Khirnov <anton@khirnov.net>	13 years ago
Vitor Sessak	39df0c434c	mpegaudiodec: optimized iMDCT transform Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	13 years ago
Vitor Sessak	6dfcf53092	mpegaudiodec: move imdct and windowing function to mpegaudiodsp Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	13 years ago
Vitor Sessak	421c99a4a7	mpegaudiodec: interleave iMDCT buffer to simplify future SIMD implementations Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	13 years ago
Vitor Sessak	96219141e2	mpegaudiodec: Use clearer pointer math Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	13 years ago
Justin Ruggles	03fafdec82	mpegaudiodec: skip all channels when skipping granules Also fix calculation of new position when switching buffers. This fixes "overread" error messages when seeking.	13 years ago
Ronald S. Bultje	464f26889c	mpegaudiodec: fix seeking. The safe bitstream reader does not allow using skip_bits_long() to seek to a point before the start of the buffer, which was needed by the mp3 decoder. This change instead calculates the start point of the first valid granule and skips to that position. Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>	13 years ago
Justin Ruggles	481a7ff5bd	mpegaudiodec: fix compilation when testing the unchecked bitstream reader	13 years ago
Mans Rullgard	ac08f798bb	mp3dec: hack: fix decoding with safe bitstream reader The buffer splicing relies on the bitstream reader over-reading the end of the buffer as declared in init_get_bits(), although more data is actually present. Manually moving the bitstream boundary after init_get_bits() allows this to work as expected. Signed-off-by: Mans Rullgard <mans@mansr.com>	13 years ago
Janne Grunau	fd095539d1	latmdec: fix audio specific config parsing Pass the correct size in bits to mpeg4audio_get_config and add a flag to disable parsing of the sync extension when the size is not known. Latm with AudioMuxVersion 0 does not specify the size of the audio specific config. Data after the audio specific config can be misinterpreted as sync extension resulting in random and wrong configs.	13 years ago
Justin Ruggles	0eea212943	Add avcodec_decode_audio4(). Deprecate avcodec_decode_audio3(). Implement audio support in avcodec_default_get_buffer(). Implement the new audio decoder API in all audio decoders.	13 years ago
Justin Ruggles	0df5e869cb	mpegaudio: do not use init_static_data() for initializing tables. It is called once for each mpegaudio codec that is registered, which adds significant overhead.	13 years ago
Martin Storsjö	268fb3f985	mpegaudiodec: Don't use a nonexistent log context for av_dlog This fixes builds with DEBUG defined, broken since `1158745a2d`. Signed-off-by: Martin Storsjö <martin@martin.st>	13 years ago
Justin Ruggles	f1d1516e55	cosmetics: indentation	13 years ago
Justin Ruggles	1158745a2d	mpegaudiodec: init static tables in AVCodec.init_static_data()	13 years ago
Justin Ruggles	ec6d743118	mp3on4: do not needlessly set data_size to 0	13 years ago
Justin Ruggles	99975966c3	mp3adu: return error instead of just consuming bad packets	13 years ago
Justin Ruggles	e2e6c8799b	mpegaudiodec: check output data size based on avctx->frame_size	13 years ago
Justin Ruggles	512557b291	avcodec: remove avcodec_parse_frame and deprecate associated elements. The documentation for CODEC_CAP_PARSE_ONLY and AVCodecContext.parse_only indicates that they are utilized through avcodec_parse_frame(), which was never actually implemented.	13 years ago
Justin Ruggles	cd816d9bbb	mpegaudiodec: cosmetics: basic pretty-printing	13 years ago
Justin Ruggles	c17e534f2e	mpegaudiodec: remove frame_count field from MPADecodeContext. Its functionality was removed several years ago, so it doesn't do anything. AVCodecContext.frame_number could serve the same purpose if someone wants to debug the frame count.	13 years ago
Justin Ruggles	dac15a03af	mpegaudiodec: return AVERROR return codes instead of -1	13 years ago
Justin Ruggles	4be1e1dfa7	mpegaudiodec: Skip only bad frames instead of the whole packet. On frame decoding failure, return an error if the frame is the same size as the whole packet, otherwise just log an error message and return the number of bytes consumed.	13 years ago
Dustin Brody	9abc98737f	lavc: replace references to deprecated AVCodecContext.error_recognition to use AVCodecContext.err_recognition Signed-off-by: Anton Khirnov <anton@khirnov.net>	13 years ago
Justin Ruggles	95891804bf	mp3on4: check for allocation failures in decode_init_mp3on4()	13 years ago
Justin Ruggles	180bf988bc	mp3on4: create a separate flush function for MP3onMP4. The correct decoder private context needs to be used. This fixes mp3on4 playback and seeking in avplay.	13 years ago
Justin Ruggles	53c8443ad2	mp3on4: ensure that the frame channel count does not exceed the codec channel count. This also allows for checking output data size based on the actual number of channel instead of the maximum number of channels.	13 years ago
Justin Ruggles	1183d6cd98	mp3on4: set channel layout	13 years ago
Justin Ruggles	fff0f831e0	mp3on4: fix the output channel order	13 years ago
Justin Ruggles	f507dd067a	mp3on4: allocate temp buffer with av_malloc() instead of on the stack. Avoids allocating unnecessary memory and ensures proper alignment.	13 years ago
Justin Ruggles	cb72230dfa	mp3on4: copy MPADSPContext from first context to all contexts. Fixes segfault when decoding multi-channel MP3onMP4 files.	13 years ago
Anton Khirnov	59a9a23581	lavc: use avpriv_ prefix for some mpeg4audio symbols used in lavf. Specifically, ff_mpeg4audio_sample_rates, ff_mpeg4audio_get_config and ff_copy_pce_data	13 years ago
Anton Khirnov	82ab61f901	lavc: use avpriv_ prefix for some mpegaudio symbols used in lavf. Specifically, ff_mpa_freq_tab, ff_mpa_bitrate_tab, ff_mpa_decode_header, ff_mpegaudio_decode_header.	13 years ago
Diego Biurrun	8671488799	Use explicit struct initializers for AVCodec declarations.	13 years ago
Diego Biurrun	bde2c1c7fe	mpegaudiodec: Fix av_dlog() invocation. Some parameters passed to the av_dlog can be either float or int, depending on the mode the file is being compiled as. Cast those parameters to float and use appropriate conversion specifiers.	14 years ago
Mans Rullgard	fdf18e33bb	mpegaudiodec: remove unusued code and variables Signed-off-by: Mans Rullgard <mans@mansr.com>	14 years ago
Mans Rullgard	6f1ec38ce2	mpegaudio: clean up compute_antialias() definition This merges the float and fixed-point versions of the compute_antialias function, fixes invalid array indexing, and eliminates a dead copy of csa_table. Signed-off-by: Mans Rullgard <mans@mansr.com>	14 years ago
Vitor Sessak	6204feb160	dct32: Add AVX implementation of 32-point DCT	14 years ago
Mans Rullgard	f255a28d14	mpegaudio: clean up #includes Signed-off-by: Mans Rullgard <mans@mansr.com>	14 years ago
Mans Rullgard	918d0584a4	mpegaudio: move some struct definitions from mpegaudio.h These structs are only used in mpegaudiodec.c, so move them there and remove no longer needed #include lines from mpegaudio.h. Signed-off-by: Mans Rullgard <mans@mansr.com>	14 years ago

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302 Commits (cac4760bf42f1b7ec93860399fbb7b5bff90005f)