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authorJustin Ruggles <justin.ruggles@gmail.com>2011-12-19 09:28:02 -0500
committerJustin Ruggles <justin.ruggles@gmail.com>2012-01-03 18:47:41 -0500
commite3d4f59f9596539c3f454836c9b64e6565484a22 (patch)
tree07c346927a08315a0aa84ddfb08902408addad3d /libavcodec/adxenc.c
parent96d8e18a98c59a3131bb3522006525f6a8d24f3f (diff)
downloadffmpeg-e3d4f59f9596539c3f454836c9b64e6565484a22.tar.gz
adxenc: remove unneeded comments
Diffstat (limited to 'libavcodec/adxenc.c')
-rw-r--r--libavcodec/adxenc.c40
1 files changed, 2 insertions, 38 deletions
diff --git a/libavcodec/adxenc.c b/libavcodec/adxenc.c
index ae4b9f7da2..fa97942677 100644
--- a/libavcodec/adxenc.c
+++ b/libavcodec/adxenc.c
@@ -33,8 +33,6 @@
* adx2wav & wav2adx http://www.geocities.co.jp/Playtown/2004/
*/
-/* 18 bytes <-> 32 samples */
-
static void adx_encode(ADXContext *c, unsigned char *adx, const short *wav,
ADXChannelState *prev)
{
@@ -60,8 +58,6 @@ static void adx_encode(ADXContext *c, unsigned char *adx, const short *wav,
prev->s1 = s1;
prev->s2 = s2;
- /* -8..+7 */
-
if (max==0 && min==0) {
memset(adx,0,18);
return;
@@ -82,35 +78,12 @@ static void adx_encode(ADXContext *c, unsigned char *adx, const short *wav,
static int adx_encode_header(AVCodecContext *avctx,unsigned char *buf,size_t bufsize)
{
-#if 0
- struct {
- uint32_t offset; /* 0x80000000 + sample start - 4 */
- unsigned char unknown1[3]; /* 03 12 04 */
- unsigned char channel; /* 1 or 2 */
- uint32_t freq;
- uint32_t size;
- uint32_t unknown2; /* 01 f4 03 00 */
- uint32_t unknown3; /* 00 00 00 00 */
- uint32_t unknown4; /* 00 00 00 00 */
-
- /* if loop
- unknown3 00 15 00 01
- unknown4 00 00 00 01
- long loop_start_sample;
- long loop_start_byte;
- long loop_end_sample;
- long loop_end_byte;
- long
- */
- } adxhdr; /* big endian */
- /* offset-6 "(c)CRI" */
-#endif
ADXContext *c = avctx->priv_data;
AV_WB32(buf+0x00,0x80000000|0x20);
AV_WB32(buf+0x04,0x03120400|avctx->channels);
AV_WB32(buf+0x08,avctx->sample_rate);
- AV_WB32(buf+0x0c,0); /* FIXME: set after */
+ AV_WB32(buf+0x0c,0);
AV_WB16(buf + 0x10, c->cutoff);
AV_WB32(buf + 0x12, 0x03000000);
AV_WB32(buf + 0x16, 0x00000000);
@@ -124,14 +97,12 @@ static av_cold int adx_encode_init(AVCodecContext *avctx)
ADXContext *c = avctx->priv_data;
if (avctx->channels > 2)
- return -1; /* only stereo or mono =) */
+ return -1;
avctx->frame_size = 32;
avctx->coded_frame= avcodec_alloc_frame();
avctx->coded_frame->key_frame= 1;
-// avctx->bit_rate = avctx->sample_rate*avctx->channels*18*8/32;
-
/* the cutoff can be adjusted, but this seems to work pretty well */
c->cutoff = 500;
ff_adx_calculate_coeffs(c->cutoff, avctx->sample_rate, COEFF_BITS, c->coeff);
@@ -156,13 +127,6 @@ static int adx_encode_frame(AVCodecContext *avctx,
unsigned char *dst = frame;
int rest = avctx->frame_size;
-/*
- input data size =
- avconv.c:do_audio_out()
- frame_bytes = enc->frame_size * 2 * enc->channels;
-*/
-
-// printf("sz=%d ",buf_size); fflush(stdout);
if (!c->header_parsed) {
int hdrsize = adx_encode_header(avctx,dst,buf_size);
dst+=hdrsize;