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Code Issues Releases Activity

alacdec: several players have problems with planar audio still thus temporary put packed output back by default

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-07-20 04:48:25 +02:00
parent e2c96fbf3e
commit 5e99df019a
1 changed files with 36 additions and 5 deletions
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41
libavcodec/alac.c
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@ -73,6 +73,8 @@ typedef struct {
int extra_bits; /**< number of extra bits beyond 16-bit */
int nb_samples; /**< number of samples in the current frame */
int direct_output;
} ALACContext;
enum RawDataBlockType {
@ -326,7 +328,7 @@ static int decode_element(AVCodecContext *avctx, void *data, int ch_index,
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
return ret;
}
if (alac->sample_size > 16) {
if (alac->direct_output) {
for (ch = 0; ch < channels; ch++)
alac->output_samples_buffer[ch] = (int32_t *)alac->frame.extended_data[ch_index + ch];
}
@ -418,6 +420,7 @@ static int decode_element(AVCodecContext *avctx, void *data, 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++) {
@ -433,6 +436,31 @@ static int decode_element(AVCodecContext *avctx, void *data, int ch_index,
}}
break;
}
}else{
switch(alac->sample_size) {
case 16: {
int16_t *outbuffer = ((int16_t *)alac->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];
}
break;
case 24: {
int32_t *outbuffer = ((int32_t *)alac->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;
}
break;
case 32: {
int32_t *outbuffer = ((int32_t *)alac->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];
}
break;
}
}
return 0;
}
@ -491,7 +519,7 @@ static av_cold int alac_decode_close(AVCodecContext *avctx)
int ch;
for (ch = 0; ch < FFMIN(alac->channels, 2); ch++) {
av_freep(&alac->predict_error_buffer[ch]);
if (alac->sample_size == 16)
if (!alac->direct_output)
av_freep(&alac->output_samples_buffer[ch]);
av_freep(&alac->extra_bits_buffer[ch]);
}
@ -508,7 +536,8 @@ static int allocate_buffers(ALACContext *alac)
FF_ALLOC_OR_GOTO(alac->avctx, alac->predict_error_buffer[ch],
buf_size, buf_alloc_fail);
if (alac->sample_size == 16) {
alac->direct_output = alac->sample_size > 16 && av_sample_fmt_is_planar(alac->avctx->sample_fmt);
if (!alac->direct_output) {
FF_ALLOC_OR_GOTO(alac->avctx, alac->output_samples_buffer[ch],
buf_size, buf_alloc_fail);
}
@ -554,6 +583,7 @@ 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;
@ -568,11 +598,12 @@ static av_cold int alac_decode_init(AVCodecContext * avctx)
return -1;
}
req_packed = !av_sample_fmt_is_planar(avctx->request_sample_fmt);
switch (alac->sample_size) {
case 16: avctx->sample_fmt = AV_SAMPLE_FMT_S16P;
case 16: avctx->sample_fmt = req_packed ? AV_SAMPLE_FMT_S16 : AV_SAMPLE_FMT_S16P;
break;
case 24:
case 32: avctx->sample_fmt = AV_SAMPLE_FMT_S32P;
case 32: avctx->sample_fmt = req_packed ? AV_SAMPLE_FMT_S32 : AV_SAMPLE_FMT_S32P;
break;
default: av_log_ask_for_sample(avctx, "Sample depth %d is not supported.\n",
alac->sample_size);