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metasound: convert to new channel layout API

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Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
Anton Khirnov 2013-05-07 07:20:32 +02:00 committed by James Almer
parent c5ccc0bd94
commit 264e222dbb
1 changed files with 17 additions and 14 deletions
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31
libavcodec/metasound.c
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@ -65,8 +65,9 @@ static void decode_ppc(TwinVQContext *tctx, int period_coef, int g_coef,
const float *shape, float *speech)
{
const TwinVQModeTab *mtab = tctx->mtab;
int channels = tctx->avctx->ch_layout.nb_channels;
int isampf = tctx->avctx->sample_rate / 1000;
int ibps = tctx->avctx->bit_rate / (1000 * tctx->avctx->channels);
int ibps = tctx->avctx->bit_rate / (1000 * channels);
int width;
float ratio = (float)mtab->size / isampf;
@ -75,7 +76,7 @@ static void decode_ppc(TwinVQContext *tctx, int period_coef, int g_coef,
float pgain_base, pgain_step, ppc_gain;
if (tctx->avctx->channels == 1) {
if (channels == 1) {
min_period = log2(ratio * 0.2);
max_period = min_period + log2(6);
} else {
@ -85,7 +86,7 @@ static void decode_ppc(TwinVQContext *tctx, int period_coef, int g_coef,
period_range = max_period - min_period;
period = min_period + period_coef * period_range /
((1 << mtab->ppc_period_bit) - 1);
if (tctx->avctx->channels == 1)
if (channels == 1)
period = powf(2.0, period);
else
period = (int)(period * 400 + 0.5) / 400.0;
@ -103,7 +104,7 @@ static void decode_ppc(TwinVQContext *tctx, int period_coef, int g_coef,
if (isampf == 22 && ibps == 32)
width = (int)((2.0 / period + 1) * width + 0.5);
pgain_base = tctx->avctx->channels == 2 ? 25000.0 : 20000.0;
pgain_base = channels == 2 ? 25000.0 : 20000.0;
pgain_step = pgain_base / ((1 << mtab->pgain_bit) - 1);
ppc_gain = 1.0 / 8192 *
twinvq_mulawinv(pgain_step * g_coef + pgain_step / 2,
@ -123,8 +124,9 @@ static void dec_bark_env(TwinVQContext *tctx, const uint8_t *in, int use_hist,
int bark_n_coef = mtab->fmode[ftype].bark_n_coef;
int fw_cb_len = mtab->fmode[ftype].bark_env_size / bark_n_coef;
int idx = 0;
int channels = tctx->avctx->ch_layout.nb_channels;
if (tctx->avctx->channels == 1)
if (channels == 1)
val = 0.5;
for (i = 0; i < fw_cb_len; i++)
for (j = 0; j < bark_n_coef; j++, idx++) {
@ -132,7 +134,7 @@ static void dec_bark_env(TwinVQContext *tctx, const uint8_t *in, int use_hist,
(1.0 / 2048);
float st;
if (tctx->avctx->channels == 1)
if (channels == 1)
st = use_hist ?
tmp2 + val * hist[idx] + 1.0 : tmp2 + 1.0;
else
@ -167,7 +169,7 @@ static int metasound_read_bitstream(AVCodecContext *avctx, TwinVQContext *tctx,
{
TwinVQFrameData *bits;
const TwinVQModeTab *mtab = tctx->mtab;
int channels = tctx->avctx->channels;
int channels = tctx->avctx->ch_layout.nb_channels;
int sub;
GetBitContext gb;
int i, j, k, ret;
@ -276,6 +278,7 @@ static av_cold int metasound_decode_init(AVCodecContext *avctx)
TwinVQContext *tctx = avctx->priv_data;
uint32_t tag;
const MetasoundProps *props = codec_props;
int channels;
if (!avctx->extradata || avctx->extradata_size < 16) {
av_log(avctx, AV_LOG_ERROR, "Missing or incomplete extradata\n");
@ -291,7 +294,7 @@ static av_cold int metasound_decode_init(AVCodecContext *avctx)
}
if (props->tag == tag) {
avctx->sample_rate = props->sample_rate;
avctx->channels = props->channels;
channels = props->channels;
avctx->bit_rate = props->bit_rate * 1000;
isampf = avctx->sample_rate / 1000;
break;
@ -299,17 +302,17 @@ static av_cold int metasound_decode_init(AVCodecContext *avctx)
props++;
}
if (avctx->channels <= 0 || avctx->channels > TWINVQ_CHANNELS_MAX) {
if (channels <= 0 || channels > TWINVQ_CHANNELS_MAX) {
av_log(avctx, AV_LOG_ERROR, "Unsupported number of channels: %i\n",
avctx->channels);
channels);
return AVERROR_INVALIDDATA;
}
avctx->channel_layout = avctx->channels == 1 ? AV_CH_LAYOUT_MONO
: AV_CH_LAYOUT_STEREO;
av_channel_layout_uninit(&avctx->ch_layout);
av_channel_layout_default(&avctx->ch_layout, channels);
ibps = avctx->bit_rate / (1000 * avctx->channels);
ibps = avctx->bit_rate / (1000 * channels);
switch ((avctx->channels << 16) + (isampf << 8) + ibps) {
switch ((channels << 16) + (isampf << 8) + ibps) {
case (1 << 16) + ( 8 << 8) + 6:
tctx->mtab = &ff_metasound_mode0806;
break;