@@ -166,8 +166,8 @@ static int ffat_update_ctx(AVCodecContext *avctx)
&size, &format)) {
if (format.mSampleRate)
avctx->sample_rate = format.mSampleRate;
- avctx->channels = format.mChannelsPerFrame;
- avctx->channel_layout = av_get_default_channel_layout(avctx->channels);
+ av_channel_layout_uninit(&avctx->ch_layout);
+ av_get_default_channel_layout(&avctx->ch_layout, format.mChannelsPerFrame);
avctx->frame_size = format.mFramesPerPacket;
}
@@ -175,7 +175,7 @@ static int ffat_update_ctx(AVCodecContext *avctx)
kAudioConverterCurrentOutputStreamDescription,
&size, &format)) {
format.mSampleRate = avctx->sample_rate;
- format.mChannelsPerFrame = avctx->channels;
+ format.mChannelsPerFrame = avctx->ch_layout.nb_channels;
AudioConverterSetProperty(at->converter,
kAudioConverterCurrentOutputStreamDescription,
size, &format);
@@ -201,7 +201,8 @@ static int ffat_update_ctx(AVCodecContext *avctx)
layout_mask |= 1 << id;
layout->mChannelDescriptions[i].mChannelFlags = i; // Abusing flags as index
}
- avctx->channel_layout = layout_mask;
+ av_channel_layout_uninit(&avctx->ch_layout);
+ av_channel_layout_from_mask(&avctx->ch_layout, layout_mask);
qsort(layout->mChannelDescriptions, layout->mNumberChannelDescriptions,
sizeof(AudioChannelDescription), &ffat_compare_channel_descriptions);
for (i = 0; i < layout->mNumberChannelDescriptions; i++)
@@ -364,11 +365,11 @@ static av_cold int ffat_create_decoder(AVCodecContext *avctx,
#endif
} else {
in_format.mSampleRate = avctx->sample_rate ? avctx->sample_rate : 44100;
- in_format.mChannelsPerFrame = avctx->channels ? avctx->channels : 1;
+ in_format.mChannelsPerFrame = avctx->ch_layout.nb_channels ? avctx->ch_layout.nb_channels : 1;
}
avctx->sample_rate = out_format.mSampleRate = in_format.mSampleRate;
- avctx->channels = out_format.mChannelsPerFrame = in_format.mChannelsPerFrame;
+ avctx->ch_layout.nb_channels = out_format.mChannelsPerFrame = in_format.mChannelsPerFrame;
if (avctx->codec_id == AV_CODEC_ID_ADPCM_IMA_QT)
in_format.mFramesPerPacket = 64;
@@ -389,7 +390,7 @@ static av_cold int ffat_create_decoder(AVCodecContext *avctx,
ffat_update_ctx(avctx);
if(!(at->decoded_data = av_malloc(av_get_bytes_per_sample(avctx->sample_fmt)
- * avctx->frame_size * avctx->channels)))
+ * avctx->frame_size * avctx->ch_layout.nb_channels)))
return AVERROR(ENOMEM);
at->last_pts = AV_NOPTS_VALUE;
@@ -408,7 +409,7 @@ static av_cold int ffat_init_decoder(AVCodecContext *avctx)
memcpy(at->extradata, avctx->extradata, avctx->extradata_size);
}
- if ((avctx->channels && avctx->sample_rate) || ffat_usable_extradata(avctx))
+ if ((avctx->ch_layout.nb_channels && avctx->sample_rate) || ffat_usable_extradata(avctx))
return ffat_create_decoder(avctx, NULL);
else
return 0;
@@ -455,11 +456,11 @@ static OSStatus ffat_decode_callback(AudioConverterRef converter, UInt32 *nb_pac
#define COPY_SAMPLES(type) \
type *in_ptr = (type*)at->decoded_data; \
- type *end_ptr = in_ptr + frame->nb_samples * avctx->channels; \
+ type *end_ptr = in_ptr + frame->nb_samples * avctx->ch_layout.nb_channels; \
type *out_ptr = (type*)frame->data[0]; \
- for (; in_ptr < end_ptr; in_ptr += avctx->channels, out_ptr += avctx->channels) { \
+ for (; in_ptr < end_ptr; in_ptr += avctx->ch_layout.nb_channels, out_ptr += avctx->ch_layout.nb_channels) { \
int c; \
- for (c = 0; c < avctx->channels; c++) \
+ for (c = 0; c < avctx->ch_layout.nb_channels; c++) \
out_ptr[c] = in_ptr[at->channel_map[c]]; \
}
@@ -509,9 +510,9 @@ static int ffat_decode(AVCodecContext *avctx, void *data,
.mNumberBuffers = 1,
.mBuffers = {
{
- .mNumberChannels = avctx->channels,
+ .mNumberChannels = avctx->ch_layout.nb_channels,
.mDataByteSize = av_get_bytes_per_sample(avctx->sample_fmt) * avctx->frame_size
- * avctx->channels,
+ * avctx->ch_layout.nb_channels,
}
}
};
@@ -178,18 +178,17 @@ static av_cold int get_channel_label(int channel)
return -1;
}
-static int remap_layout(AudioChannelLayout *layout, uint64_t in_layout, int count)
+static int remap_layout(AudioChannelLayout *layout, const AVChannelLayout *in_layout)
{
int i;
- int c = 0;
layout->mChannelLayoutTag = kAudioChannelLayoutTag_UseChannelDescriptions;
- layout->mNumberChannelDescriptions = count;
- for (i = 0; i < count; i++) {
- int label;
- while (!(in_layout & (1 << c)) && c < 64)
- c++;
- if (c == 64)
- return AVERROR(EINVAL); // This should never happen
+ layout->mNumberChannelDescriptions = in_layout->nb_channels;
+ for (i = 0; i < in_layout->nb_channels; i++) {
+ int c, label;
+
+ c = av_channel_layout_get_channel(in_layout, i);
+ if (c < 0 || c >= 64)
+ return AVERROR(EINVAL);
label = get_channel_label(c);
layout->mChannelDescriptions[i].mChannelLabel = label;
if (label < 0)
@@ -199,38 +198,33 @@ static int remap_layout(AudioChannelLayout *layout, uint64_t in_layout, int coun
return 0;
}
-static int get_aac_tag(uint64_t in_layout)
+static int get_aac_tag(const AVChannelLayout *in_layout)
{
- switch (in_layout) {
- case AV_CH_LAYOUT_MONO:
- return kAudioChannelLayoutTag_Mono;
- case AV_CH_LAYOUT_STEREO:
- return kAudioChannelLayoutTag_Stereo;
- case AV_CH_LAYOUT_QUAD:
- return kAudioChannelLayoutTag_AAC_Quadraphonic;
- case AV_CH_LAYOUT_OCTAGONAL:
- return kAudioChannelLayoutTag_AAC_Octagonal;
- case AV_CH_LAYOUT_SURROUND:
- return kAudioChannelLayoutTag_AAC_3_0;
- case AV_CH_LAYOUT_4POINT0:
- return kAudioChannelLayoutTag_AAC_4_0;
- case AV_CH_LAYOUT_5POINT0:
- return kAudioChannelLayoutTag_AAC_5_0;
- case AV_CH_LAYOUT_5POINT1:
- return kAudioChannelLayoutTag_AAC_5_1;
- case AV_CH_LAYOUT_6POINT0:
- return kAudioChannelLayoutTag_AAC_6_0;
- case AV_CH_LAYOUT_6POINT1:
- return kAudioChannelLayoutTag_AAC_6_1;
- case AV_CH_LAYOUT_7POINT0:
- return kAudioChannelLayoutTag_AAC_7_0;
- case AV_CH_LAYOUT_7POINT1_WIDE_BACK:
- return kAudioChannelLayoutTag_AAC_7_1;
- case AV_CH_LAYOUT_7POINT1:
- return kAudioChannelLayoutTag_MPEG_7_1_C;
- default:
- return 0;
- }
+ static const struct {
+ AVChannelLayout chl;
+ int tag;
+ } map[] = {
+ { AV_CH_LAYOUT_MONO, kAudioChannelLayoutTag_Mono },
+ { AV_CH_LAYOUT_STEREO, kAudioChannelLayoutTag_Stereo },
+ { AV_CH_LAYOUT_QUAD, kAudioChannelLayoutTag_AAC_Quadraphonic },
+ { AV_CH_LAYOUT_OCTAGONAL, kAudioChannelLayoutTag_AAC_Octagonal },
+ { AV_CH_LAYOUT_SURROUND, kAudioChannelLayoutTag_AAC_3_0 },
+ { AV_CH_LAYOUT_4POINT0, kAudioChannelLayoutTag_AAC_4_0 },
+ { AV_CH_LAYOUT_5POINT0, kAudioChannelLayoutTag_AAC_5_0 },
+ { AV_CH_LAYOUT_5POINT1, kAudioChannelLayoutTag_AAC_5_1 },
+ { AV_CH_LAYOUT_6POINT0, kAudioChannelLayoutTag_AAC_6_0 },
+ { AV_CH_LAYOUT_6POINT1, kAudioChannelLayoutTag_AAC_6_1 },
+ { AV_CH_LAYOUT_7POINT0, kAudioChannelLayoutTag_AAC_7_0 },
+ { AV_CH_LAYOUT_7POINT1_WIDE_BACK, kAudioChannelLayoutTag_AAC_7_1 },
+ { AV_CH_LAYOUT_7POINT1, kAudioChannelLayoutTag_MPEG_7_1_C },
+ };
+ int i;
+
+ for (i = 0; i < FF_ARRAY_ELEMS; i++)
+ if (!av_channel_layout_compare(in_layout, &map[i].chl))
+ return map[i].tag;
+
+ return 0;
}
static av_cold int ffat_init_encoder(AVCodecContext *avctx)
@@ -246,10 +240,10 @@ static av_cold int ffat_init_encoder(AVCodecContext *avctx)
: avctx->sample_fmt == AV_SAMPLE_FMT_U8 ? 0
: kAudioFormatFlagIsSignedInteger)
| kAudioFormatFlagIsPacked,
- .mBytesPerPacket = av_get_bytes_per_sample(avctx->sample_fmt) * avctx->channels,
+ .mBytesPerPacket = av_get_bytes_per_sample(avctx->sample_fmt) * avctx->ch_layout.nb_channels,
.mFramesPerPacket = 1,
- .mBytesPerFrame = av_get_bytes_per_sample(avctx->sample_fmt) * avctx->channels,
- .mChannelsPerFrame = avctx->channels,
+ .mBytesPerFrame = av_get_bytes_per_sample(avctx->sample_fmt) * avctx->ch_layout.nb_channels,
+ .mChannelsPerFrame = avctx->ch_layout.nb_channels,
.mBitsPerChannel = av_get_bytes_per_sample(avctx->sample_fmt) * 8,
};
AudioStreamBasicDescription out_format = {
@@ -258,7 +252,7 @@ static av_cold int ffat_init_encoder(AVCodecContext *avctx)
.mChannelsPerFrame = in_format.mChannelsPerFrame,
};
UInt32 layout_size = sizeof(AudioChannelLayout) +
- sizeof(AudioChannelDescription) * avctx->channels;
+ sizeof(AudioChannelDescription) * avctx->ch_layout.nb_channels;
AudioChannelLayout *channel_layout = av_malloc(layout_size);
if (!channel_layout)
@@ -278,10 +272,7 @@ static av_cold int ffat_init_encoder(AVCodecContext *avctx)
return AVERROR_UNKNOWN;
}
- if (!avctx->channel_layout)
- avctx->channel_layout = av_get_default_channel_layout(avctx->channels);
-
- if ((status = remap_layout(channel_layout, avctx->channel_layout, avctx->channels)) < 0) {
+ if ((status = remap_layout(channel_layout, &avctx->ch_layout)) < 0) {
av_log(avctx, AV_LOG_ERROR, "Invalid channel layout\n");
av_free(channel_layout);
return status;
@@ -294,7 +285,7 @@ static av_cold int ffat_init_encoder(AVCodecContext *avctx)
return AVERROR(EINVAL);
}
if (avctx->codec_id == AV_CODEC_ID_AAC) {
- int tag = get_aac_tag(avctx->channel_layout);
+ int tag = get_aac_tag(&avctx->ch_layout);
if (tag) {
channel_layout->mChannelLayoutTag = tag;
channel_layout->mNumberChannelDescriptions = 0;
@@ -476,10 +467,10 @@ static OSStatus ffat_encode_callback(AudioConverterRef converter, UInt32 *nb_pac
frame = ff_bufqueue_get(&at->frame_queue);
data->mNumberBuffers = 1;
- data->mBuffers[0].mNumberChannels = avctx->channels;
+ data->mBuffers[0].mNumberChannels = avctx->ch_layout.nb_channels;
data->mBuffers[0].mDataByteSize = frame->nb_samples *
av_get_bytes_per_sample(avctx->sample_fmt) *
- avctx->channels;
+ avctx->ch_layout.nb_channels;
data->mBuffers[0].mData = frame->data[0];
if (*nb_packets > frame->nb_samples)
*nb_packets = frame->nb_samples;
@@ -506,7 +497,7 @@ static int ffat_encode(AVCodecContext *avctx, AVPacket *avpkt,
.mNumberBuffers = 1,
.mBuffers = {
{
- .mNumberChannels = avctx->channels,
+ .mNumberChannels = avctx->ch_layout.nb_channels,
.mDataByteSize = at->pkt_size,
}
}