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avcodec/alac: remove dead code cruft 

The output is always planar since two major bumps, remove all code
related to packed output.
This commit is contained in:
Hendrik Leppkes 2015-09-06 10:44:11 +02:00
parent c5406d5e15
commit eb011f73ca
1 changed files with 3 additions and 37 deletions
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40
libavcodec/alac.c
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@ -404,7 +404,6 @@ static int decode_element(AVCodecContext *avctx, AVFrame *frame, int ch_index,
alac->extra_bits, channels, alac->nb_samples);
}
if(av_sample_fmt_is_planar(avctx->sample_fmt)) {
switch(alac->sample_size) {
case 16: {
for (ch = 0; ch < channels; ch++) {
@ -420,37 +419,6 @@ static int decode_element(AVCodecContext *avctx, AVFrame *frame, int ch_index,
}}
break;
}
}else{
switch(alac->sample_size) {
case 16: {
int16_t *outbuffer = ((int16_t *)frame->extended_data[0]) + ch_index;
for (i = 0; i < alac->nb_samples; i++) {
for (ch = 0; ch < channels; ch++)
*outbuffer++ = alac->output_samples_buffer[ch][i];
outbuffer += alac->channels - channels;
}
}
break;
case 24: {
int32_t *outbuffer = ((int32_t *)frame->extended_data[0]) + ch_index;
for (i = 0; i < alac->nb_samples; i++) {
for (ch = 0; ch < channels; ch++)
*outbuffer++ = alac->output_samples_buffer[ch][i] << 8;
outbuffer += alac->channels - channels;
}
}
break;
case 32: {
int32_t *outbuffer = ((int32_t *)frame->extended_data[0]) + ch_index;
for (i = 0; i < alac->nb_samples; i++) {
for (ch = 0; ch < channels; ch++)
*outbuffer++ = alac->output_samples_buffer[ch][i];
outbuffer += alac->channels - channels;
}
}
break;
}
}
return 0;
}
@ -544,7 +512,7 @@ static int allocate_buffers(ALACContext *alac)
FF_ALLOC_OR_GOTO(alac->avctx, alac->predict_error_buffer[ch],
buf_size, buf_alloc_fail);
alac->direct_output = alac->sample_size > 16 && av_sample_fmt_is_planar(alac->avctx->sample_fmt);
alac->direct_output = alac->sample_size > 16;
if (!alac->direct_output) {
FF_ALLOC_OR_GOTO(alac->avctx, alac->output_samples_buffer[ch],
buf_size, buf_alloc_fail);
@ -593,7 +561,6 @@ static int alac_set_info(ALACContext *alac)
static av_cold int alac_decode_init(AVCodecContext * avctx)
{
int ret;
int req_packed;
ALACContext *alac = avctx->priv_data;
alac->avctx = avctx;
@ -607,12 +574,11 @@ static av_cold int alac_decode_init(AVCodecContext * avctx)
return -1;
}
req_packed = LIBAVCODEC_VERSION_MAJOR < 55 && !av_sample_fmt_is_planar(avctx->request_sample_fmt);
switch (alac->sample_size) {
case 16: avctx->sample_fmt = req_packed ? AV_SAMPLE_FMT_S16 : AV_SAMPLE_FMT_S16P;
case 16: avctx->sample_fmt = AV_SAMPLE_FMT_S16P;
break;
case 24:
case 32: avctx->sample_fmt = req_packed ? AV_SAMPLE_FMT_S32 : AV_SAMPLE_FMT_S32P;
case 32: avctx->sample_fmt = AV_SAMPLE_FMT_S32P;
break;
default: avpriv_request_sample(avctx, "Sample depth %d", alac->sample_size);
return AVERROR_PATCHWELCOME;