FFmpeg

Commit Graph

Author	SHA1	Message	Date
Martin Storsjö	0776e0ef6b	adpcm: Write the proper predictor in trellis mode in IMA QT The actual predictor value, set by the trellis code, never was written back into the variable that was written into the block header. This was accidentally removed in `b304244b`. This significantly improves the audio quality of the trellis case, which was plain broken since `b304244b`. Encoding IMA QT with trellis still actually gives a slightly worse quality than without trellis, since the trellis encoder doesn't use the exact same way of rounding as in adpcm_ima_qt_compress_sample and adpcm_ima_qt_expand_nibble. CC: libav-stable@libav.org Signed-off-by: Martin Storsjö <martin@martin.st>	11 years ago
Martin Storsjö	3d79d0c93e	adpcm: Avoid reading out of bounds in the IMA QT trellis encoder This was broken in `095be4fb` - samples+ch (for the previous non-planar case) equals &samples_p[ch][0]. The confusion probably stemmed from the IMA WAV case where it originally was &samples[avctx->channels + ch], which was correctly changed into &samples_p[ch][1]. CC: libav-stable@libav.org Signed-off-by: Martin Storsjö <martin@martin.st>	11 years ago
Diego Biurrun	b2bed9325d	cosmetics: Group .name and .long_name together in codec/format declarations	11 years ago
Diego Biurrun	ac9362c5d9	Move misplaced file author information where it belongs	12 years ago
Anton Khirnov	f073b1500e	lavc: remove disabled FF_API_OLD_ENCODE_AUDIO cruft	12 years ago
Justin Ruggles	5364327186	adpcmenc: ensure calls to adpcm_ima_compress_sample() are in the right order Should fix fate-acodec-adpcm-ima_wav with several compilers.	12 years ago
Justin Ruggles	095be4fbf6	adpcmenc: use planar sample format for adpcm_ima_wav and adpcm_ima_qt	12 years ago
Justin Ruggles	d9a13c2f56	adpcmenc: move 'ch' variable to higher scope It is used for multiple codecs.	12 years ago
Justin Ruggles	9606f19b4e	adpcmenc: fix 3 instances of variable shadowing	12 years ago
Justin Ruggles	1e35574bad	adpcm_ima_wav: simplify encoding	12 years ago
Michael Niedermayer	aa264da5bf	adpcmenc: Calculate the IMA_QT predictor without overflow Previously, the value given to put_bits was 10 bits long for positive predictors, even though 9 bits were to be written. The extra bit could in some cases overwrite existing bits in the bitstream writer cache. This fixes a failed assert in put_bits.h, when running a version built with -DDEBUG. The fate test result gets slightly improved, thanks to getting rid of the overwritten bits in the bitstream writer cache. Signed-off-by: Martin Storsjö <martin@martin.st>	12 years ago
Justin Ruggles	5d4ef004bf	adpcm_swf: Use correct sample offsets when using trellis. Fixes invalid reads when encoding mono streams when trellis is used.	13 years ago
Anton Khirnov	36ef5369ee	Replace all CODEC_ID_* with AV_CODEC_ID_*	13 years ago
Ronald S. Bultje	98041afb5f	adpcm: don't duplicate identical AVSampleFmt array for each encoder.	13 years ago
Martin Storsjö	00c3b67b8a	cosmetics: Align codec declarations Also break some long lines, remove codec function placeholder comments and add spaces in sample/pixel format lists. Signed-off-by: Martin Storsjö <martin@martin.st>	13 years ago
Justin Ruggles	24e74f0a0f	adpcmenc: update to AVCodec.encode2()	13 years ago
Justin Ruggles	770a5c6d02	adpcmenc: Use correct frame_size for Yamaha ADPCM. Output packet size should match avctx->block_align. The target output packet size is 1024 bytes. Before: mono - 1024 samples -> 512 bytes stereo - 2048 samples -> 2048 bytes After: mono - 2048 samples -> 1024 bytes stereo - 1024 samples -> 1024 bytes	13 years ago
Justin Ruggles	a3a0691bde	adpcmenc: remove some unneeded casts	13 years ago
Justin Ruggles	149f2058a4	adpcmenc: use int16_t and uint8_t instead of short and unsigned char.	13 years ago
Justin Ruggles	dd88ae831a	adpcmenc: fix adpcm_ms extradata allocation Add FF_INPUT_BUFFER_PADDING_SIZE. If allocation fails, also free memory which was allocated previously in adpcm_encode_init().	13 years ago
Justin Ruggles	877a1d409c	adpcmenc: return proper AVERROR codes instead of -1	13 years ago
Justin Ruggles	cb023d9afe	adpcmenc: check for coded_frame allocation failure	13 years ago
Justin Ruggles	ddf70db6d7	adpcmenc: Do not set coded_frame->key_frame. It is already set in avcodec_alloc_frame().	13 years ago
Chris Berov	dc6d043050	adpcmenc: cosmetics: pretty-printing Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>	13 years ago
Justin Ruggles	7c287b18a0	adpcm: update reference links Add Multimedia Wiki link. Mark dead links with [dead]. Some can still be accessed through archive.org. Update URLs for pages which have moved. Replace duplicated links in adpcmenc.c with a note to see the ADPCM decoder reference documents.	13 years ago
Diego Biurrun	8671488799	Use explicit struct initializers for AVCodec declarations.	13 years ago
Justin Ruggles	9ff6d0791b	adpcmenc: Set bits_per_coded_sample	13 years ago
Baptiste Coudurier	b304244b54	adpcmenc: fix QT IMA ADPCM encoder Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Justin Ruggles	826c56d16e	adpcm: split ADPCM encoders and decoders into separate files. Move shared tables to a separate file as well.	13 years ago

29 Commits (f07a4290a0e8f31796e348edd3ed06b8d15132d8)