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author | Michael Niedermayer <michaelni@gmx.at> | 2011-06-14 04:55:27 +0200 |
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committer | Michael Niedermayer <michaelni@gmx.at> | 2011-06-14 04:56:26 +0200 |
commit | 173cd695cbb79a50a0738ce7bcc966cb40f4a28a (patch) | |
tree | 1a8025d98e71b5950eb12ed24c2c8787a5c185e3 /libavcodec/ac3enc_fixed.c | |
parent | fdb5e02901111a6a53f8386d82afae0aa2d746a7 (diff) | |
parent | 35bdaf3d427b6856df01d41ee826bd515440ec46 (diff) | |
download | ffmpeg-173cd695cbb79a50a0738ce7bcc966cb40f4a28a.tar.gz |
Merge remote-tracking branch 'qatar/master'
* qatar/master: (24 commits)
utils: Drop pointless '#if 1' preprocessor directive.
ac3enc: remove empty ac3_float function that is never called
ac3enc: split templated float vs. fixed functions into a separate file.
ac3enc: dynamically allocate AC3EncodeContext fields windowed_samples and mdct
ac3enc: use function pointer to choose between AC-3 and E-AC-3 header output functions.
Roll back 4:4:4 H.264 for now Needs some ARM/PPC asm modifications.
Fix SVQ3 after adding 4:4:4 H.264 support
H.264: fix CODEC_FLAG_GRAY
4:4:4 H.264 decoding support
h264_parser: Fix whitespace after previous change.
h264_parser: Fix behaviour when PARSER_FLAG_COMPLETE_FRAMES is set.
wav: remove an invalid free().
lavf: initialise reference_dts in av_estimate_timings_from_pts.
h264: don't be so picky on decoding pps in extradata.
avcodec.h: add or elaborate on some documentation comments.
h264: change a few comments into error messages
ac3dec: fix doxy-style for comment ("///>" should be "///<" instead).
img2: add .dpx to the list of supported file extensions.
ffv1: fix undefined behavior with insane widths.
ARM: jrevdct_arm: simplify stack usage
...
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec/ac3enc_fixed.c')
-rw-r--r-- | libavcodec/ac3enc_fixed.c | 38 |
1 files changed, 27 insertions, 11 deletions
diff --git a/libavcodec/ac3enc_fixed.c b/libavcodec/ac3enc_fixed.c index 6b1ee88c9f..f4d447e3b2 100644 --- a/libavcodec/ac3enc_fixed.c +++ b/libavcodec/ac3enc_fixed.c @@ -28,13 +28,20 @@ #define CONFIG_FFT_FLOAT 0 #undef CONFIG_AC3ENC_FLOAT -#include "ac3enc.c" +#include "ac3enc.h" + +#define AC3ENC_TYPE AC3ENC_TYPE_AC3_FIXED +#include "ac3enc_opts_template.c" +static AVClass ac3enc_class = { "Fixed-Point AC-3 Encoder", av_default_item_name, + ac3fixed_options, LIBAVUTIL_VERSION_INT }; + +#include "ac3enc_template.c" /** * Finalize MDCT and free allocated memory. */ -static av_cold void mdct_end(AC3MDCTContext *mdct) +av_cold void AC3_NAME(mdct_end)(AC3MDCTContext *mdct) { ff_mdct_end(&mdct->fft); } @@ -44,8 +51,8 @@ static av_cold void mdct_end(AC3MDCTContext *mdct) * Initialize MDCT tables. * @param nbits log2(MDCT size) */ -static av_cold int mdct_init(AVCodecContext *avctx, AC3MDCTContext *mdct, - int nbits) +av_cold int AC3_NAME(mdct_init)(AVCodecContext *avctx, AC3MDCTContext *mdct, + int nbits) { int ret = ff_mdct_init(&mdct->fft, nbits, 0, -1.0); mdct->window = ff_ac3_window; @@ -56,8 +63,9 @@ static av_cold int mdct_init(AVCodecContext *avctx, AC3MDCTContext *mdct, /** * Apply KBD window to input samples prior to MDCT. */ -static void apply_window(DSPContext *dsp, int16_t *output, const int16_t *input, - const int16_t *window, unsigned int len) +void AC3_NAME(apply_window)(DSPContext *dsp, int16_t *output, + const int16_t *input, const int16_t *window, + unsigned int len) { dsp->apply_window_int16(output, input, window, len); } @@ -82,7 +90,7 @@ static int log2_tab(AC3EncodeContext *s, int16_t *src, int len) * * @return exponent shift */ -static int normalize_samples(AC3EncodeContext *s) +int AC3_NAME(normalize_samples)(AC3EncodeContext *s) { int v = 14 - log2_tab(s, s->windowed_samples, AC3_WINDOW_SIZE); if (v > 0) @@ -95,7 +103,7 @@ static int normalize_samples(AC3EncodeContext *s) /** * Scale MDCT coefficients to 25-bit signed fixed-point. */ -static void scale_coefficients(AC3EncodeContext *s) +void AC3_NAME(scale_coefficients)(AC3EncodeContext *s) { int blk, ch; @@ -109,14 +117,22 @@ static void scale_coefficients(AC3EncodeContext *s) } +static av_cold int ac3_fixed_encode_init(AVCodecContext *avctx) +{ + AC3EncodeContext *s = avctx->priv_data; + s->fixed_point = 1; + return ff_ac3_encode_init(avctx); +} + + AVCodec ff_ac3_fixed_encoder = { "ac3_fixed", AVMEDIA_TYPE_AUDIO, CODEC_ID_AC3, sizeof(AC3EncodeContext), - ac3_encode_init, - ac3_encode_frame, - ac3_encode_close, + ac3_fixed_encode_init, + ff_ac3_encode_frame, + ff_ac3_encode_close, NULL, .sample_fmts = (const enum AVSampleFormat[]){AV_SAMPLE_FMT_S16,AV_SAMPLE_FMT_NONE}, .long_name = NULL_IF_CONFIG_SMALL("ATSC A/52A (AC-3)"), |