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| author | Peter Ross <pross@xvid.org> | 2008-08-16 01:25:12 +0000 |
|---|---|---|
| committer | Peter Ross <pross@xvid.org> | 2008-08-16 01:25:12 +0000 |
| commit | 38a1c7f2be4e0599c4c47c0b7eb55caa09c67fd4 (patch) | |
| tree | 6044ad15aaaec87be1a2e7c4e39830782706a104 /libavcodec/pcm.c | |
| parent | 4c00864f311fbf771241e2fdbff91f688bc4a7f5 (diff) | |
| download | ffmpeg-38a1c7f2be4e0599c4c47c0b7eb55caa09c67fd4.tar.gz | |
Use memcpy() for PCM S16/S32 codecs when codec byte-order matches machine byte-order.
Originally committed as revision 14784 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/pcm.c')
| -rw-r--r-- | libavcodec/pcm.c | 78 |
1 files changed, 47 insertions, 31 deletions
diff --git a/libavcodec/pcm.c b/libavcodec/pcm.c index de1e6c899f..85a2d231d6 100644 --- a/libavcodec/pcm.c +++ b/libavcodec/pcm.c @@ -172,13 +172,6 @@ static int pcm_encode_frame(AVCodecContext *avctx, } switch(avctx->codec->id) { - case CODEC_ID_PCM_F32BE: - case CODEC_ID_PCM_S32BE: - ENCODE(int32_t, be32, samples, dst, n, 0, 0) - break; - case CODEC_ID_PCM_S32LE: - ENCODE(int32_t, le32, samples, dst, n, 0, 0) - break; case CODEC_ID_PCM_U32LE: ENCODE(uint32_t, le32, samples, dst, n, 0, 0x80000000) break; @@ -206,12 +199,6 @@ static int pcm_encode_frame(AVCodecContext *avctx, samples++; } break; - case CODEC_ID_PCM_S16LE: - ENCODE(int16_t, le16, samples, dst, n, 0, 0) - break; - case CODEC_ID_PCM_S16BE: - ENCODE(int16_t, be16, samples, dst, n, 0, 0) - break; case CODEC_ID_PCM_U16LE: ENCODE(uint16_t, le16, samples, dst, n, 0, 0x8000) break; @@ -225,9 +212,30 @@ static int pcm_encode_frame(AVCodecContext *avctx, *dst++ = v - 128; } break; +#if WORDS_BIGENDIAN + case CODEC_ID_PCM_S32LE: + ENCODE(int32_t, le32, samples, dst, n, 0, 0) + break; + case CODEC_ID_PCM_S16LE: + ENCODE(int16_t, le16, samples, dst, n, 0, 0) + break; + case CODEC_ID_PCM_F32BE: + case CODEC_ID_PCM_S32BE: + case CODEC_ID_PCM_S16BE: +#else + case CODEC_ID_PCM_F32BE: + case CODEC_ID_PCM_S32BE: + ENCODE(int32_t, be32, samples, dst, n, 0, 0) + break; + case CODEC_ID_PCM_S16BE: + ENCODE(int16_t, be16, samples, dst, n, 0, 0) + break; + case CODEC_ID_PCM_S32LE: + case CODEC_ID_PCM_S16LE: +#endif /* WORDS_BIGENDIAN */ case CODEC_ID_PCM_U8: - memcpy(dst, samples, n); - dst += n; + memcpy(dst, samples, n*sample_size); + dst += n*sample_size; break; case CODEC_ID_PCM_ZORK: for(;n>0;n--) { @@ -347,13 +355,6 @@ static int pcm_decode_frame(AVCodecContext *avctx, n = buf_size/sample_size; switch(avctx->codec->id) { - case CODEC_ID_PCM_F32BE: - case CODEC_ID_PCM_S32BE: - DECODE(int32_t, be32, src, samples, n, 0, 0) - break; - case CODEC_ID_PCM_S32LE: - DECODE(int32_t, le32, src, samples, n, 0, 0) - break; case CODEC_ID_PCM_U32LE: DECODE(uint32_t, le32, src, samples, n, 0, 0x80000000) break; @@ -380,9 +381,6 @@ static int pcm_decode_frame(AVCodecContext *avctx, (ff_reverse[v & 0xff] << 8); } break; - case CODEC_ID_PCM_S16LE: - DECODE(int16_t, le16, src, samples, n, 0, 0) - break; case CODEC_ID_PCM_S16LE_PLANAR: n /= avctx->channels; for(c=0;c<avctx->channels;c++) @@ -392,9 +390,6 @@ static int pcm_decode_frame(AVCodecContext *avctx, *samples++ = bytestream_get_le16(&src2[c]); src = src2[avctx->channels-1]; break; - case CODEC_ID_PCM_S16BE: - DECODE(int16_t, be16, src, samples, n, 0, 0) - break; case CODEC_ID_PCM_U16LE: DECODE(uint16_t, le16, src, samples, n, 0, 0x8000) break; @@ -408,10 +403,31 @@ static int pcm_decode_frame(AVCodecContext *avctx, } samples= (short*)dstu8; break; +#if WORDS_BIGENDIAN + case CODEC_ID_PCM_S32LE: + DECODE(int32_t, le32, src, samples, n, 0, 0) + break; + case CODEC_ID_PCM_S16LE: + DECODE(int16_t, le16, src, samples, n, 0, 0) + break; + case CODEC_ID_PCM_F32BE: + case CODEC_ID_PCM_S32BE: + case CODEC_ID_PCM_S16BE: +#else + case CODEC_ID_PCM_F32BE: + case CODEC_ID_PCM_S32BE: + DECODE(int32_t, be32, src, samples, n, 0, 0) + break; + case CODEC_ID_PCM_S16BE: + DECODE(int16_t, be16, src, samples, n, 0, 0) + break; + case CODEC_ID_PCM_S32LE: + case CODEC_ID_PCM_S16LE: +#endif /* WORDS_BIGENDIAN */ case CODEC_ID_PCM_U8: - memcpy(samples, src, n); - src += n; - samples = (short*)((uint8_t*)data + n); + memcpy(samples, src, n*sample_size); + src += n*sample_size; + samples = (short*)((uint8_t*)data + n*sample_size); break; case CODEC_ID_PCM_ZORK: for(;n>0;n--) { |