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atrac3: convert to new channel layout API

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Signed-off-by: Anton Khirnov <anton@khirnov.net>
Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
Vittorio Giovara 2017-04-04 16:33:28 +02:00 committed by James Almer
parent 0544b7059e
commit 70da5ce478
1 changed files with 22 additions and 19 deletions
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41
libavcodec/atrac3.c
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@ -646,6 +646,7 @@ static int decode_frame(AVCodecContext *avctx, const uint8_t *databuf,
ATRAC3Context *q = avctx->priv_data;
int ret, i, ch;
uint8_t *ptr1;
int channels = avctx->ch_layout.nb_channels;
if (q->coding_mode == JOINT_STEREO) {
/* channel coupling mode */
@ -655,9 +656,9 @@ static int decode_frame(AVCodecContext *avctx, const uint8_t *databuf,
const uint8_t *js_databuf;
int js_pair, js_block_align;
js_block_align = (avctx->block_align / avctx->channels) * 2; /* block pair */
js_block_align = (avctx->block_align / channels) * 2; /* block pair */
for (ch = 0; ch < avctx->channels; ch = ch + 2) {
for (ch = 0; ch < channels; ch = ch + 2) {
js_pair = ch/2;
js_databuf = databuf + js_pair * js_block_align; /* align to current pair */
@ -726,11 +727,11 @@ static int decode_frame(AVCodecContext *avctx, const uint8_t *databuf,
} else {
/* single channels */
/* Decode the channel sound units. */
for (i = 0; i < avctx->channels; i++) {
for (i = 0; i < channels; i++) {
/* Set the bitstream reader at the start of a channel sound unit. */
init_get_bits(&q->gb,
databuf + i * avctx->block_align / avctx->channels,
avctx->block_align * 8 / avctx->channels);
databuf + i * avctx->block_align / channels,
avctx->block_align * 8 / channels);
ret = decode_channel_sound_unit(q, &q->gb, &q->units[i],
out_samples[i], i, q->coding_mode);
@ -740,7 +741,7 @@ static int decode_frame(AVCodecContext *avctx, const uint8_t *databuf,
}
/* Apply the iQMF synthesis filter. */
for (i = 0; i < avctx->channels; i++) {
for (i = 0; i < channels; i++) {
float *p1 = out_samples[i];
float *p2 = p1 + 256;
float *p3 = p2 + 256;
@ -757,24 +758,25 @@ static int al_decode_frame(AVCodecContext *avctx, const uint8_t *databuf,
int size, float **out_samples)
{
ATRAC3Context *q = avctx->priv_data;
int channels = avctx->ch_layout.nb_channels;
int ret, i;
/* Set the bitstream reader at the start of a channel sound unit. */
init_get_bits(&q->gb, databuf, size * 8);
/* single channels */
/* Decode the channel sound units. */
for (i = 0; i < avctx->channels; i++) {
for (i = 0; i < channels; i++) {
ret = decode_channel_sound_unit(q, &q->gb, &q->units[i],
out_samples[i], i, q->coding_mode);
if (ret != 0)
return ret;
while (i < avctx->channels && get_bits_left(&q->gb) > 6 && show_bits(&q->gb, 6) != 0x28) {
while (i < channels && get_bits_left(&q->gb) > 6 && show_bits(&q->gb, 6) != 0x28) {
skip_bits(&q->gb, 1);
}
}
/* Apply the iQMF synthesis filter. */
for (i = 0; i < avctx->channels; i++) {
for (i = 0; i < channels; i++) {
float *p1 = out_samples[i];
float *p2 = p1 + 256;
float *p3 = p2 + 256;
@ -879,8 +881,9 @@ static av_cold int atrac3_decode_init(AVCodecContext *avctx)
const uint8_t *edata_ptr = avctx->extradata;
ATRAC3Context *q = avctx->priv_data;
AVFloatDSPContext *fdsp;
int channels = avctx->ch_layout.nb_channels;
if (avctx->channels < MIN_CHANNELS || avctx->channels > MAX_CHANNELS) {
if (channels < MIN_CHANNELS || channels > MAX_CHANNELS) {
av_log(avctx, AV_LOG_ERROR, "Channel configuration error!\n");
return AVERROR(EINVAL);
}
@ -888,7 +891,7 @@ static av_cold int atrac3_decode_init(AVCodecContext *avctx)
/* Take care of the codec-specific extradata. */
if (avctx->codec_id == AV_CODEC_ID_ATRAC3AL) {
version = 4;
samples_per_frame = SAMPLES_PER_FRAME * avctx->channels;
samples_per_frame = SAMPLES_PER_FRAME * channels;
delay = 0x88E;
q->coding_mode = SINGLE;
} else if (avctx->extradata_size == 14) {
@ -904,18 +907,18 @@ static av_cold int atrac3_decode_init(AVCodecContext *avctx)
bytestream_get_le16(&edata_ptr)); // Unknown always 0
/* setup */
samples_per_frame = SAMPLES_PER_FRAME * avctx->channels;
samples_per_frame = SAMPLES_PER_FRAME * channels;
version = 4;
delay = 0x88E;
q->coding_mode = q->coding_mode ? JOINT_STEREO : SINGLE;
q->scrambled_stream = 0;
if (avctx->block_align != 96 * avctx->channels * frame_factor &&
avctx->block_align != 152 * avctx->channels * frame_factor &&
avctx->block_align != 192 * avctx->channels * frame_factor) {
if (avctx->block_align != 96 * channels * frame_factor &&
avctx->block_align != 152 * channels * frame_factor &&
avctx->block_align != 192 * channels * frame_factor) {
av_log(avctx, AV_LOG_ERROR, "Unknown frame/channel/frame_factor "
"configuration %d/%d/%d\n", avctx->block_align,
avctx->channels, frame_factor);
channels, frame_factor);
return AVERROR_INVALIDDATA;
}
} else if (avctx->extradata_size == 12 || avctx->extradata_size == 10) {
@ -939,7 +942,7 @@ static av_cold int atrac3_decode_init(AVCodecContext *avctx)
return AVERROR_INVALIDDATA;
}
if (samples_per_frame != SAMPLES_PER_FRAME * avctx->channels) {
if (samples_per_frame != SAMPLES_PER_FRAME * channels) {
av_log(avctx, AV_LOG_ERROR, "Unknown amount of samples per frame %d.\n",
samples_per_frame);
return AVERROR_INVALIDDATA;
@ -954,7 +957,7 @@ static av_cold int atrac3_decode_init(AVCodecContext *avctx)
if (q->coding_mode == SINGLE)
av_log(avctx, AV_LOG_DEBUG, "Single channels detected.\n");
else if (q->coding_mode == JOINT_STEREO) {
if (avctx->channels % 2 == 1) { /* Joint stereo channels must be even */
if (channels % 2 == 1) { /* Joint stereo channels must be even */
av_log(avctx, AV_LOG_ERROR, "Invalid joint stereo channel configuration.\n");
return AVERROR_INVALIDDATA;
}
@ -1004,7 +1007,7 @@ static av_cold int atrac3_decode_init(AVCodecContext *avctx)
q->vector_fmul = fdsp->vector_fmul;
av_free(fdsp);
q->units = av_calloc(avctx->channels, sizeof(*q->units));
q->units = av_calloc(channels, sizeof(*q->units));
if (!q->units)
return AVERROR(ENOMEM);