diff options
Diffstat (limited to 'chromium/third_party/ffmpeg/libavcodec/ac3dec.h')
| -rw-r--r-- | chromium/third_party/ffmpeg/libavcodec/ac3dec.h | 42 |
1 files changed, 28 insertions, 14 deletions
diff --git a/chromium/third_party/ffmpeg/libavcodec/ac3dec.h b/chromium/third_party/ffmpeg/libavcodec/ac3dec.h index fa447c4d6f8..5196d90901f 100644 --- a/chromium/third_party/ffmpeg/libavcodec/ac3dec.h +++ b/chromium/third_party/ffmpeg/libavcodec/ac3dec.h @@ -51,6 +51,7 @@ #define AVCODEC_AC3DEC_H #include "libavutil/float_dsp.h" +#include "libavutil/fixed_dsp.h" #include "libavutil/lfg.h" #include "ac3.h" #include "ac3dsp.h" @@ -79,13 +80,22 @@ typedef struct AC3DecodeContext { int bit_rate; ///< stream bit rate, in bits-per-second int sample_rate; ///< sample frequency, in Hz int num_blocks; ///< number of audio blocks + int bitstream_id; ///< bitstream id (bsid) int bitstream_mode; ///< bitstream mode (bsmod) int channel_mode; ///< channel mode (acmod) int lfe_on; ///< lfe channel in use int channel_map; ///< custom channel map + int preferred_downmix; ///< Preferred 2-channel downmix mode (dmixmod) int center_mix_level; ///< Center mix level index + int center_mix_level_ltrt; ///< Center mix level index for Lt/Rt (ltrtcmixlev) int surround_mix_level; ///< Surround mix level index + int surround_mix_level_ltrt; ///< Surround mix level index for Lt/Rt (ltrtsurmixlev) + int lfe_mix_level_exists; ///< indicates if lfemixlevcod is specified (lfemixlevcode) + int lfe_mix_level; ///< LFE mix level index (lfemixlevcod) int eac3; ///< indicates if current frame is E-AC-3 + int dolby_surround_mode; ///< dolby surround mode (dsurmod) + int dolby_surround_ex_mode; ///< dolby surround ex mode (dsurexmod) + int dolby_headphone_mode; ///< dolby headphone mode (dheadphonmod) ///@} int preferred_stereo_downmix; @@ -129,8 +139,8 @@ typedef struct AC3DecodeContext { int num_spx_bands; ///< number of spx bands (nspxbnds) uint8_t spx_band_sizes[SPX_MAX_BANDS]; ///< number of bins in each spx band uint8_t first_spx_coords[AC3_MAX_CHANNELS]; ///< first spx coordinates states (firstspxcos) - float spx_noise_blend[AC3_MAX_CHANNELS][SPX_MAX_BANDS]; ///< spx noise blending factor (nblendfact) - float spx_signal_blend[AC3_MAX_CHANNELS][SPX_MAX_BANDS];///< spx signal blending factor (sblendfact) + INTFLOAT spx_noise_blend[AC3_MAX_CHANNELS][SPX_MAX_BANDS]; ///< spx noise blending factor (nblendfact) + INTFLOAT spx_signal_blend[AC3_MAX_CHANNELS][SPX_MAX_BANDS];///< spx signal blending factor (sblendfact) ///@} ///@name Adaptive hybrid transform @@ -142,15 +152,15 @@ typedef struct AC3DecodeContext { int fbw_channels; ///< number of full-bandwidth channels int channels; ///< number of total channels int lfe_ch; ///< index of LFE channel - float downmix_coeffs[AC3_MAX_CHANNELS][2]; ///< stereo downmix coefficients + SHORTFLOAT downmix_coeffs[AC3_MAX_CHANNELS][2]; ///< stereo downmix coefficients int downmixed; ///< indicates if coeffs are currently downmixed int output_mode; ///< output channel configuration int out_channels; ///< number of output channels ///@} ///@name Dynamic range - float dynamic_range[2]; ///< dynamic range - float drc_scale; ///< percentage of dynamic range compression to be applied + INTFLOAT dynamic_range[2]; ///< dynamic range + INTFLOAT drc_scale; ///< percentage of dynamic range compression to be applied ///@} ///@name Bandwidth @@ -198,22 +208,26 @@ typedef struct AC3DecodeContext { ///@name Optimization DSPContext dsp; ///< for optimization +#if USE_FIXED + AVFixedDSPContext *fdsp; +#else AVFloatDSPContext fdsp; +#endif AC3DSPContext ac3dsp; FmtConvertContext fmt_conv; ///< optimized conversion functions ///@} - float *outptr[AC3_MAX_CHANNELS]; - float *xcfptr[AC3_MAX_CHANNELS]; - float *dlyptr[AC3_MAX_CHANNELS]; + SHORTFLOAT *outptr[AC3_MAX_CHANNELS]; + INTFLOAT *xcfptr[AC3_MAX_CHANNELS]; + INTFLOAT *dlyptr[AC3_MAX_CHANNELS]; ///@name Aligned arrays - DECLARE_ALIGNED(16, int32_t, fixed_coeffs)[AC3_MAX_CHANNELS][AC3_MAX_COEFS]; ///< fixed-point transform coefficients - DECLARE_ALIGNED(32, float, transform_coeffs)[AC3_MAX_CHANNELS][AC3_MAX_COEFS]; ///< transform coefficients - DECLARE_ALIGNED(32, float, delay)[AC3_MAX_CHANNELS][AC3_BLOCK_SIZE]; ///< delay - added to the next block - DECLARE_ALIGNED(32, float, window)[AC3_BLOCK_SIZE]; ///< window coefficients - DECLARE_ALIGNED(32, float, tmp_output)[AC3_BLOCK_SIZE]; ///< temporary storage for output before windowing - DECLARE_ALIGNED(32, float, output)[AC3_MAX_CHANNELS][AC3_BLOCK_SIZE]; ///< output after imdct transform and windowing + DECLARE_ALIGNED(16, int, fixed_coeffs)[AC3_MAX_CHANNELS][AC3_MAX_COEFS]; ///< fixed-point transform coefficients + DECLARE_ALIGNED(32, INTFLOAT, transform_coeffs)[AC3_MAX_CHANNELS][AC3_MAX_COEFS]; ///< transform coefficients + DECLARE_ALIGNED(32, INTFLOAT, delay)[AC3_MAX_CHANNELS][AC3_BLOCK_SIZE]; ///< delay - added to the next block + DECLARE_ALIGNED(32, INTFLOAT, window)[AC3_BLOCK_SIZE]; ///< window coefficients + DECLARE_ALIGNED(32, INTFLOAT, tmp_output)[AC3_BLOCK_SIZE]; ///< temporary storage for output before windowing + DECLARE_ALIGNED(32, SHORTFLOAT, output)[AC3_MAX_CHANNELS][AC3_BLOCK_SIZE]; ///< output after imdct transform and windowing DECLARE_ALIGNED(32, uint8_t, input_buffer)[AC3_FRAME_BUFFER_SIZE + FF_INPUT_BUFFER_PADDING_SIZE]; ///< temp buffer to prevent overread ///@} } AC3DecodeContext; |