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| author | Justin Ruggles <justin.ruggles@gmail.com> | 2011-11-27 13:07:19 -0500 |
|---|---|---|
| committer | Justin Ruggles <justin.ruggles@gmail.com> | 2011-11-27 13:59:34 -0500 |
| commit | 0df5e869cb9fc4eb6f7aacdf40920b0b87ce4db7 (patch) | |
| tree | d375e419e3cb7dcb7bc52aa54143e8a1d6f6794a /libavcodec/mpegaudiodec.c | |
| parent | d9ba767d615ffb1f51ac3f990c51768ea8622da8 (diff) | |
| download | ffmpeg-0df5e869cb9fc4eb6f7aacdf40920b0b87ce4db7.tar.gz | |
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.
Diffstat (limited to 'libavcodec/mpegaudiodec.c')
| -rw-r--r-- | libavcodec/mpegaudiodec.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/libavcodec/mpegaudiodec.c b/libavcodec/mpegaudiodec.c index bc012731b9..ffd369021c 100644 --- a/libavcodec/mpegaudiodec.c +++ b/libavcodec/mpegaudiodec.c @@ -266,7 +266,7 @@ static inline int l3_unscale(int value, int exponent) return m; } -static void decode_init_static(AVCodec *codec) +static av_cold void decode_init_static(void) { int i, j, k; int offset; @@ -457,8 +457,14 @@ static void decode_init_static(AVCodec *codec) static av_cold int decode_init(AVCodecContext * avctx) { + static int initialized_tables = 0; MPADecodeContext *s = avctx->priv_data; + if (!initialized_tables) { + decode_init_static(); + initialized_tables = 1; + } + s->avctx = avctx; ff_mpadsp_init(&s->mpadsp); @@ -2110,7 +2116,6 @@ AVCodec ff_mp1_decoder = { .type = AVMEDIA_TYPE_AUDIO, .id = CODEC_ID_MP1, .priv_data_size = sizeof(MPADecodeContext), - .init_static_data = decode_init_static, .init = decode_init, .decode = decode_frame, #if FF_API_PARSE_FRAME @@ -2126,7 +2131,6 @@ AVCodec ff_mp2_decoder = { .type = AVMEDIA_TYPE_AUDIO, .id = CODEC_ID_MP2, .priv_data_size = sizeof(MPADecodeContext), - .init_static_data = decode_init_static, .init = decode_init, .decode = decode_frame, #if FF_API_PARSE_FRAME @@ -2142,7 +2146,6 @@ AVCodec ff_mp3_decoder = { .type = AVMEDIA_TYPE_AUDIO, .id = CODEC_ID_MP3, .priv_data_size = sizeof(MPADecodeContext), - .init_static_data = decode_init_static, .init = decode_init, .decode = decode_frame, #if FF_API_PARSE_FRAME @@ -2158,7 +2161,6 @@ AVCodec ff_mp3adu_decoder = { .type = AVMEDIA_TYPE_AUDIO, .id = CODEC_ID_MP3ADU, .priv_data_size = sizeof(MPADecodeContext), - .init_static_data = decode_init_static, .init = decode_init, .decode = decode_frame_adu, #if FF_API_PARSE_FRAME @@ -2174,7 +2176,6 @@ AVCodec ff_mp3on4_decoder = { .type = AVMEDIA_TYPE_AUDIO, .id = CODEC_ID_MP3ON4, .priv_data_size = sizeof(MP3On4DecodeContext), - .init_static_data = decode_init_static, .init = decode_init_mp3on4, .close = decode_close_mp3on4, .decode = decode_frame_mp3on4, |