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Code Issues Releases Activity

mace: 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 e5d4941c40
commit c5ccc0bd94
1 changed files with 8 additions and 7 deletions
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15
libavcodec/mace.c
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@ -226,7 +226,7 @@ static void chomp6(ChannelData *chd, int16_t *output, uint8_t val, int tab_idx)
static av_cold int mace_decode_init(AVCodecContext * avctx) static av_cold int mace_decode_init(AVCodecContext * avctx)
{ {
if (avctx->channels > 2 || avctx->channels < 1) if (avctx->ch_layout.nb_channels > 2 || avctx->ch_layout.nb_channels < 1)
return AVERROR(EINVAL); return AVERROR(EINVAL);
avctx->sample_fmt = AV_SAMPLE_FMT_S16P; avctx->sample_fmt = AV_SAMPLE_FMT_S16P;
@ -239,31 +239,32 @@ static int mace_decode_frame(AVCodecContext *avctx, void *data,
AVFrame *frame = data; AVFrame *frame = data;
const uint8_t *buf = avpkt->data; const uint8_t *buf = avpkt->data;
int buf_size = avpkt->size; int buf_size = avpkt->size;
int channels = avctx->ch_layout.nb_channels;
int16_t **samples; int16_t **samples;
MACEContext *ctx = avctx->priv_data; MACEContext *ctx = avctx->priv_data;
int i, j, k, l, ret; int i, j, k, l, ret;
int is_mace3 = (avctx->codec_id == AV_CODEC_ID_MACE3); int is_mace3 = (avctx->codec_id == AV_CODEC_ID_MACE3);
if (buf_size % (avctx->channels << is_mace3)) { if (buf_size % (channels << is_mace3)) {
av_log(avctx, AV_LOG_ERROR, "buffer size %d is odd\n", buf_size); av_log(avctx, AV_LOG_ERROR, "buffer size %d is odd\n", buf_size);
buf_size -= buf_size % (avctx->channels << is_mace3); buf_size -= buf_size % (channels << is_mace3);
if (!buf_size) if (!buf_size)
return AVERROR_INVALIDDATA; return AVERROR_INVALIDDATA;
} }
/* get output buffer */ /* get output buffer */
frame->nb_samples = 3 * (buf_size << (1 - is_mace3)) / avctx->channels; frame->nb_samples = 3 * (buf_size << (1 - is_mace3)) / channels;
if ((ret = ff_get_buffer(avctx, frame, 0)) < 0) if ((ret = ff_get_buffer(avctx, frame, 0)) < 0)
return ret; return ret;
samples = (int16_t **)frame->extended_data; samples = (int16_t **)frame->extended_data;
for(i = 0; i < avctx->channels; i++) { for(i = 0; i < channels; i++) {
int16_t *output = samples[i]; int16_t *output = samples[i];
for (j=0; j < buf_size / (avctx->channels << is_mace3); j++) for (j=0; j < buf_size / (channels << is_mace3); j++)
for (k=0; k < (1 << is_mace3); k++) { for (k=0; k < (1 << is_mace3); k++) {
uint8_t pkt = buf[(i << is_mace3) + uint8_t pkt = buf[(i << is_mace3) +
(j*avctx->channels << is_mace3) + k]; (j * channels << is_mace3) + k];
uint8_t val[2][3] = {{pkt >> 5, (pkt >> 3) & 3, pkt & 7 }, uint8_t val[2][3] = {{pkt >> 5, (pkt >> 3) & 3, pkt & 7 },
{pkt & 7 , (pkt >> 3) & 3, pkt >> 5}}; {pkt & 7 , (pkt >> 3) & 3, pkt >> 5}};