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* vda: support synchronous decodingSebastien Zwickert2012-08-14
| | | | | | | Note that the symbols used to run the hardware decoder in asynchronous mode have been marked deprecated and will be dropped at a future version bump. Signed-off-by: Diego Biurrun <diego@biurrun.de>
* vda: Reuse the bitstream buffer and reallocate it only if neededSebastien Zwickert2012-08-14
| | | | Signed-off-by: Diego Biurrun <diego@biurrun.de>
* build: Factor out mpegvideo encoding dependencies to CONFIG_MPEGVIDEOENCDiego Biurrun2012-08-14
| | | | | A new hidden config variable is added for the codecs that depend on the mpegvideo encoding parts.
* avprobe: Include libm.h for the log2 fallbackMartin Storsjö2012-08-14
| | | | Signed-off-by: Martin Storsjö <martin@martin.st>
* proresenc: use the edge emulation bufferBoris Maksalov2012-08-13
| | | | | | Prevents reading past the end of frame buffer. Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
* rtmp: handle bytes read reportsLuca Barbato2012-08-13
| | | | | 0x03 (bytes read report) is a known type and should be safely ignored beside in debug situations.
* configure: Fix typo in mpeg2video/svq1 decoder dependency declarationDiego Biurrun2012-08-13
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* Use log2(x) instead of log(x) / log(2)Mans Rullgard2012-08-13
| | | | Signed-off-by: Mans Rullgard <mans@mansr.com>
* x86: swscale: fix fragile memory accessesMans Rullgard2012-08-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | To access data at multiple fixed offsets from a base address, this code uses a single "m" operand and code of the form "32%0", relying on the memory operand instantiation having no displacement, giving a final result of the form "32(%rax)". If the compiler uses a register and displacement, e.g. "64(%rax)", the end result becomes "3264(%rax)", which obviously does not work. Replacing the "m" operands with "r" operands allows safe addition of a displacement. In theory, multiple memory operands could use a shared base register with different index registers, "(%rax,%rbx)", potentially making more efficient use of registers. In the cases at hand, no such sharing is possible since the addresses involved are entirely unrelated. After this change, the code somewhat rudely accesses memory without using a corresponding memory operand, which in some cases can lead to unwanted "optimisations" of surrounding code. However, the original code also accesses memory not covered by a memory operand, so this is not adding any defect not already present. It is also hightly unlikely that any such optimisations could be performed here since the memory locations in questions are not accessed elsewhere in the same functions. This fixes crashes with suncc. Signed-off-by: Mans Rullgard <mans@mansr.com>
* x86: swscale: remove disabled codeMans Rullgard2012-08-13
| | | | | | | This code has been disabled since 2003. Nobody will ever look at it again. Signed-off-by: Mans Rullgard <mans@mansr.com>
* x86: yadif: fix asm with sunccMans Rullgard2012-08-13
| | | | | | | | | | | | | | | | Under some circumstances, suncc will use a single register for the address of all memory operands, inserting lea instructions loading the correct address prior to each memory operand being used in the code. In the yadif code, the branch in the asm block bypasses such an lea instruction, causing an incorrect address to be used in the following load. This patch replaces the tmpX arrays with a single array and uses a register operand to hold its address. Although this prevents using offsets from the stack pointer to access these locations, the code still builds as 32-bit PIC even with old compilers. Signed-off-by: Mans Rullgard <mans@mansr.com>
* x86: cabac: allow building with sunccMans Rullgard2012-08-13
| | | | | | | | | | | | | | | | | | | | This fixes two issues preventing suncc from building this code. The undocumented 'a' operand modifier, causing gcc to omit a $ in front of immediate operands (as required in addresses), is not supported by suncc. Luckily, the also undocumented 'c' modifer has the same effect and is supported. On some asm statements with a large number of operands, suncc for no obvious reason fails to correctly substitute some of the operands. Fortunately, some of the operands in these statements are plain numbers which can be inserted directly into the code block instead of passed as operands. With these changes, the code builds correctly with both gcc and suncc. Signed-off-by: Mans Rullgard <mans@mansr.com>
* x86: mlpdsp: avoid taking address of voidMans Rullgard2012-08-13
| | | | | | | | | | | | | | This code contains a C array of addresses of labels defined in inline asm. To do this, the names must be declared as external in C. The declared type does not matter since only the address is used, and for some reason, the author of the code used the 'void' type despite taking the address of a void expression being invalid. Changing the type to char, a reasonable choice since the alignment of the code labels cannot be known or guaranteed, eliminates gcc warnings and allows building with suncc. Signed-off-by: Mans Rullgard <mans@mansr.com>
* ARM: intmath: use native-size return types for clipping functionsMans Rullgard2012-08-13
| | | | | | | This avoids having the compiler redundantly mask the values to the smaller size. Signed-off-by: Mans Rullgard <mans@mansr.com>
* g723.1: do not pass large structs by valueMans Rullgard2012-08-13
| | | | Signed-off-by: Mans Rullgard <mans@mansr.com>
* g723.1: do not bounce intermediate values via memoryMans Rullgard2012-08-13
| | | | | | | | | Although a reasonable compiler will probably optimise out the actual store and load, this operation still implies a truncation to 16 bits which the compiler will probably not realise is not necessary here. Signed-off-by: Mans Rullgard <mans@mansr.com>
* g723.1: declare a variable in the block it is usedMans Rullgard2012-08-13
| | | | Signed-off-by: Mans Rullgard <mans@mansr.com>
* g723.1: avoid saving/restoring excitationMans Rullgard2012-08-13
| | | | | | | | Writing the scaled excitation to a scratch buffer (borrowing the 'audio' array) instead of modifying it in place avoids the need to save and restore the unscaled values. Signed-off-by: Mans Rullgard <mans@mansr.com>
* g723.1: avoid unnecessary memcpy() in residual_interp()Mans Rullgard2012-08-13
| | | | Signed-off-by: Mans Rullgard <mans@mansr.com>
* g723.1: make postfilter write directly to output bufferMans Rullgard2012-08-13
| | | | Signed-off-by: Mans Rullgard <mans@mansr.com>
* g723.1: drop unnecessary variable buf_ptr in formant_postfilter()Mans Rullgard2012-08-13
| | | | Signed-off-by: Mans Rullgard <mans@mansr.com>
* g723.1: make scale_vector() output to a separate bufferMans Rullgard2012-08-13
| | | | Signed-off-by: Mans Rullgard <mans@mansr.com>
* g723.1: make autocorr_max() work on an arbitrary bufferMans Rullgard2012-08-13
| | | | Signed-off-by: Mans Rullgard <mans@mansr.com>
* g723.1: do not needlessly use int64_tMans Rullgard2012-08-13
| | | | Signed-off-by: Mans Rullgard <mans@mansr.com>
* g723.1: use saturating addition functionsMans Rullgard2012-08-13
| | | | | | | | Use saturating addition functions instead of 64-bit intermediates and separate clipping. This is much faster when dedicated instructions are available. Signed-off-by: Mans Rullgard <mans@mansr.com>
* g723.1: optimise scale_vector()Mans Rullgard2012-08-13
| | | | | | | | | | | | | | Firstly, nothing in this function can overflow 32 bits so the use of a 64-bit type is completely unnecessary. Secondly, the scale is either a power of two or 0x7fff. Doing separate loops for these cases avoids using multiplications. Finally, since only the number of bits, not the actual value, of the maximum value is needed, the bitwise or of all the values serves the purpose while being faster. It is worth noting that even if overflow could happen, it was not handled correctly anyway. Signed-off-by: Mans Rullgard <mans@mansr.com>
* g723.1: remove useless uses of MUL64()Mans Rullgard2012-08-13
| | | | | | | | The operands in both cases are 16-bit so cannot overflow a 32-bit destination. In gain_scale() the inputs are reduced to 14-bit, so even the shift cannot overflow. Signed-off-by: Mans Rullgard <mans@mansr.com>
* g723.1: remove unnecessary argument 'shift' from dot_product()Mans Rullgard2012-08-13
| | | | | | | The 'shift' argument is always 1 so there is no need to pass it explicitly in every call. Signed-off-by: Mans Rullgard <mans@mansr.com>
* g723.1: deobfuscate "(x << 4) - x" to "15 * x"Mans Rullgard2012-08-13
| | | | | | The compiler performs this optimisation. Signed-off-by: Mans Rullgard <mans@mansr.com>
* celp: optimise ff_celp_lp_synthesis_filter()Mans Rullgard2012-08-13
| | | | | | | | | | | | | Adding instead of subtracting the products in the loop allows the compiler to generate more efficient multiply-accumulate instructions when 16-bit multiply-subtract is not available. ARM has only multiply-accumulate for 16-bit operands. In general, if only one variant exists, it is usually accumulate rather than subtract. In the same spirit, using the dedicated saturation function enables use of any special optimised versions of this. Signed-off-by: Mans Rullgard <mans@mansr.com>
* libavutil: add saturating addition functionsMans Rullgard2012-08-13
| | | | | | | Fixed-point audio codecs often use saturating arithmetic, and special instructions for these operations are common. Signed-off-by: Mans Rullgard <mans@mansr.com>
* cllc: Implement ARGB supportDerek Buitenhuis2012-08-12
| | | | Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
* cllc: Add support for QRGBDerek Buitenhuis2012-08-12
| | | | Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
* cllc: Rename some funcs to represent what they actually doDerek Buitenhuis2012-08-12
| | | | | | | This is in preparation for adding support for other colorspaces and coding types. Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
* x86: Drop silly "_yasm" suffixes from filenamesDiego Biurrun2012-08-12
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* doc: Clarify licensing issues arising from external librariesDiego Biurrun2012-08-12
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* lavf: Detect discontinuities in timestamps for framerate/analyzeduration ↵Martin Storsjö2012-08-12
| | | | | | | | | calculation If the dts difference is more than 1000 times the average dts difference, restart the analysis. Signed-off-by: Martin Storsjö <martin@martin.st>
* lavf: Initialize the stream info timestamps in avformat_new_streamMartin Storsjö2012-08-12
| | | | | | | | | | | These are normally initialized to AV_NOPTS_VALUE at the start of avformat_find_stream_info, but if a new stream is found while this function is running (e.g. like in mpegts), the newly added AVStreams didn't have these values properly initalized, leading to avformat_find_stream_info terminating too soon (when the first timestamps are far from 0). Signed-off-by: Martin Storsjö <martin@martin.st>
* id3v2: Match PIC mimetype/format case-insensitivelyMohammad Alsaleh2012-08-12
| | | | | | | | | | | Some files' embedded art seems to have the mimetype 'image/JPG' instead of 'image/jpg'. Libav fails to parse those because it matches case-sensitively. Use av_strncasecmp() to fix this behaviour. Signed-off-by: Mohammad Alsaleh <msal@tormail.org> Signed-off-by: Anton Khirnov <anton@khirnov.net>
* configure: Rename check_asm() to more fitting check_inline_asm()Diego Biurrun2012-08-11
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* fate: Only test enabled filtersDiego Biurrun2012-08-11
| | | | This fixes running FATE without --enable-gpl.
* avresample: De-doxygenize some comments where Doxygen is not appropriateDiego Biurrun2012-08-11
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* rtmp: split chunk_size var into in_chunk_size and out_chunk_sizeJordi Ortiz2012-08-11
| | | | Signed-off-by: Martin Storsjö <martin@martin.st>
* rtmp: Factorize the code by adding find_tracked_methodSamuel Pitoiset2012-08-11
| | | | | | | Also fix the bytestream reader size parameter to take the offset into account. Signed-off-by: Martin Storsjö <martin@martin.st>
* lavf: simplify is_intra_only() by using codec descriptors.Anton Khirnov2012-08-11
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* lavc: add an intra-only codec property.Anton Khirnov2012-08-11
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* lavc: add codec descriptors.Anton Khirnov2012-08-11
| | | | | They describe properties that are inherent to a codec (as described by an AVCodecID) without referring to a specific implementation.
* lavc: fix mixing CODEC_ID/AV_CODEC_ID in C++ code.Anton Khirnov2012-08-10
| | | | | | | C++ does not allow to mix different enums, so e.g. code comparing ACodecID with CodecID would fail to compile with gcc. This very evil hack should fix this problem.
* dict: move struct AVDictionary definition to dict.cMans Rullgard2012-08-10
| | | | | | | This makes struct AVDictionary fully opaque now that nothing needs to access it directly any more. Signed-off-by: Mans Rullgard <mans@mansr.com>
* dict: add av_dict_count()Mans Rullgard2012-08-10
| | | | | | | | This adds a function to retrieve the number of entries in a dictionary and updates the places directly accessing what should be an opaque struct to use this new function instead. Signed-off-by: Mans Rullgard <mans@mansr.com>
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