|
|
|
@ -24,18 +24,21 @@ |
|
|
|
|
* Interface to libaacplus for aac+ (sbr+ps) encoding. |
|
|
|
|
*/ |
|
|
|
|
|
|
|
|
|
#include "avcodec.h" |
|
|
|
|
#include <aacplus.h> |
|
|
|
|
|
|
|
|
|
#include "avcodec.h" |
|
|
|
|
#include "internal.h" |
|
|
|
|
|
|
|
|
|
typedef struct aacPlusAudioContext { |
|
|
|
|
aacplusEncHandle aacplus_handle; |
|
|
|
|
unsigned long max_output_bytes; |
|
|
|
|
unsigned long samples_input; |
|
|
|
|
} aacPlusAudioContext; |
|
|
|
|
|
|
|
|
|
static av_cold int aacPlus_encode_init(AVCodecContext *avctx) |
|
|
|
|
{ |
|
|
|
|
aacPlusAudioContext *s = avctx->priv_data; |
|
|
|
|
aacplusEncConfiguration *aacplus_cfg; |
|
|
|
|
unsigned long samples_input, max_bytes_output; |
|
|
|
|
|
|
|
|
|
/* number of channels */ |
|
|
|
|
if (avctx->channels < 1 || avctx->channels > 2) { |
|
|
|
@ -43,9 +46,8 @@ static av_cold int aacPlus_encode_init(AVCodecContext *avctx) |
|
|
|
|
return -1; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
s->aacplus_handle = aacplusEncOpen(avctx->sample_rate, |
|
|
|
|
avctx->channels, |
|
|
|
|
&samples_input, &max_bytes_output); |
|
|
|
|
s->aacplus_handle = aacplusEncOpen(avctx->sample_rate, avctx->channels, |
|
|
|
|
&s->samples_input, &s->max_output_bytes); |
|
|
|
|
if(!s->aacplus_handle) { |
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "can't open encoder\n"); |
|
|
|
|
return -1; |
|
|
|
@ -70,10 +72,12 @@ static av_cold int aacPlus_encode_init(AVCodecContext *avctx) |
|
|
|
|
return -1; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
avctx->frame_size = samples_input / avctx->channels; |
|
|
|
|
avctx->frame_size = s->samples_input / avctx->channels; |
|
|
|
|
|
|
|
|
|
#if FF_API_OLD_ENCODE_AUDIO |
|
|
|
|
avctx->coded_frame= avcodec_alloc_frame(); |
|
|
|
|
avctx->coded_frame->key_frame= 1; |
|
|
|
|
#endif |
|
|
|
|
|
|
|
|
|
/* Set decoder specific info */ |
|
|
|
|
avctx->extradata_size = 0; |
|
|
|
@ -95,26 +99,30 @@ static av_cold int aacPlus_encode_init(AVCodecContext *avctx) |
|
|
|
|
return 0; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
static int aacPlus_encode_frame(AVCodecContext *avctx, |
|
|
|
|
unsigned char *frame, int buf_size, void *data) |
|
|
|
|
static int aacPlus_encode_frame(AVCodecContext *avctx, AVPacket *pkt, |
|
|
|
|
const AVFrame *frame, int *got_packet) |
|
|
|
|
{ |
|
|
|
|
aacPlusAudioContext *s = avctx->priv_data; |
|
|
|
|
int bytes_written; |
|
|
|
|
int32_t *input_buffer = (int32_t *)frame->data[0]; |
|
|
|
|
int ret; |
|
|
|
|
|
|
|
|
|
bytes_written = aacplusEncEncode(s->aacplus_handle, |
|
|
|
|
data, |
|
|
|
|
avctx->frame_size * avctx->channels, |
|
|
|
|
frame, |
|
|
|
|
buf_size); |
|
|
|
|
if ((ret = ff_alloc_packet2(avctx, pkt, s->max_output_bytes))) |
|
|
|
|
return ret; |
|
|
|
|
|
|
|
|
|
return bytes_written; |
|
|
|
|
pkt->size = aacplusEncEncode(s->aacplus_handle, input_buffer, |
|
|
|
|
s->samples_input, pkt->data, pkt->size); |
|
|
|
|
*got_packet = 1; |
|
|
|
|
pkt->pts = frame->pts; |
|
|
|
|
return 0; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
static av_cold int aacPlus_encode_close(AVCodecContext *avctx) |
|
|
|
|
{ |
|
|
|
|
aacPlusAudioContext *s = avctx->priv_data; |
|
|
|
|
|
|
|
|
|
#if FF_API_OLD_ENCODE_AUDIO |
|
|
|
|
av_freep(&avctx->coded_frame); |
|
|
|
|
#endif |
|
|
|
|
av_freep(&avctx->extradata); |
|
|
|
|
|
|
|
|
|
aacplusEncClose(s->aacplus_handle); |
|
|
|
@ -127,7 +135,7 @@ AVCodec ff_libaacplus_encoder = { |
|
|
|
|
.id = CODEC_ID_AAC, |
|
|
|
|
.priv_data_size = sizeof(aacPlusAudioContext), |
|
|
|
|
.init = aacPlus_encode_init, |
|
|
|
|
.encode = aacPlus_encode_frame, |
|
|
|
|
.encode2 = aacPlus_encode_frame, |
|
|
|
|
.close = aacPlus_encode_close, |
|
|
|
|
.sample_fmts = (const enum AVSampleFormat[]){AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_NONE}, |
|
|
|
|
.long_name = NULL_IF_CONFIG_SMALL("libaacplus AAC+ (Advanced Audio Codec with SBR+PS)"), |
|
|
|
|