32 #if CONFIG_LIBOPENCORE_AMRNB_DECODER || CONFIG_LIBOPENCORE_AMRWB_DECODER
52 #if CONFIG_LIBOPENCORE_AMRNB
54 #include <opencore-amrnb/interf_dec.h>
55 #include <opencore-amrnb/interf_enc.h>
68 #if CONFIG_LIBOPENCORE_AMRNB_DECODER
74 if ((ret = amr_decode_fix_avctx(avctx)) < 0)
77 s->dec_state = Decoder_Interface_init();
90 Decoder_Interface_exit(
s->dec_state);
100 int buf_size = avpkt->
size;
102 static const uint8_t block_size[16] = { 12, 13, 15, 17, 19, 20, 26, 31, 5, 0, 0, 0, 0, 0, 0, 0 };
104 int packet_size, ret;
106 ff_dlog(avctx,
"amr_decode_frame buf=%p buf_size=%d frame_count=%d!!\n",
114 dec_mode = (buf[0] >> 3) & 0x000F;
115 packet_size = block_size[dec_mode] + 1;
117 if (packet_size > buf_size) {
119 buf_size, packet_size);
123 ff_dlog(avctx,
"packet_size=%d buf= 0x%"PRIx8
" %"PRIx8
" %"PRIx8
" %"PRIx8
"\n",
124 packet_size, buf[0], buf[1], buf[2], buf[3]);
126 Decoder_Interface_Decode(
s->dec_state, buf, (
short *)
frame->
data[0], 0);
134 .
name =
"libopencore_amrnb",
139 .
init = amr_nb_decode_init,
140 .close = amr_nb_decode_close,
141 .
decode = amr_nb_decode_frame,
146 #if CONFIG_LIBOPENCORE_AMRNB_ENCODER
148 typedef struct AMR_bitrates {
154 static int get_bitrate_mode(
int bitrate,
void *log_ctx)
157 static const AMR_bitrates
rates[] = {
158 { 4750, MR475 }, { 5150, MR515 }, { 5900, MR59 }, { 6700, MR67 },
159 { 7400, MR74 }, { 7950, MR795 }, { 10200, MR102 }, { 12200, MR122 }
161 int i, best = -1, min_diff = 0;
164 for (
i = 0;
i < 8;
i++) {
173 snprintf(log_buf,
sizeof(log_buf),
"bitrate not supported: use one of ");
174 for (
i = 0;
i < 8;
i++)
176 av_strlcatf(log_buf,
sizeof(log_buf),
"using %.2fk",
rates[best].rate / 1000.f);
187 static const AVClass amrnb_class = {
212 s->enc_state = Encoder_Interface_init(
s->enc_dtx);
218 s->enc_mode = get_bitrate_mode(avctx->
bit_rate, avctx);
228 Encoder_Interface_exit(
s->enc_state);
238 int16_t *flush_buf =
NULL;
242 s->enc_mode = get_bitrate_mode(avctx->
bit_rate, avctx);
257 s->enc_last_frame = -1;
264 if (
s->enc_last_frame < 0)
270 s->enc_last_frame = -1;
273 written = Encoder_Interface_Encode(
s->enc_state,
s->enc_mode, samples,
275 ff_dlog(avctx,
"amr_nb_encode_frame encoded %u bytes, bitrate %u, first byte was %#02x\n",
276 written,
s->enc_mode, avpkt->
data[0]);
282 avpkt->
size = written;
289 .
name =
"libopencore_amrnb",
294 .
init = amr_nb_encode_init,
295 .encode2 = amr_nb_encode_frame,
296 .close = amr_nb_encode_close,
300 .priv_class = &amrnb_class,
307 #if CONFIG_LIBOPENCORE_AMRWB_DECODER
309 #include <opencore-amrwb/dec_if.h>
310 #include <opencore-amrwb/if_rom.h>
321 if ((ret = amr_decode_fix_avctx(avctx)) < 0)
324 s->state = D_IF_init();
330 int *got_frame_ptr,
AVPacket *avpkt)
334 int buf_size = avpkt->
size;
338 static const uint8_t block_size[16] = {18, 24, 33, 37, 41, 47, 51, 59, 61, 6, 6, 0, 0, 0, 1, 1};
345 mode = (buf[0] >> 3) & 0x000F;
346 packet_size = block_size[
mode];
348 if (packet_size > buf_size) {
350 buf_size, packet_size + 1);
358 D_IF_decode(
s->state, buf, (
short *)
frame->
data[0], _good_frame);
374 .
name =
"libopencore_amrwb",
379 .
init = amr_wb_decode_init,
380 .close = amr_wb_decode_close,
381 .
decode = amr_wb_decode_frame,
383 .wrapper_name =
"libopencore_amrwb",
static enum AVSampleFormat sample_fmts[]
AVCodec ff_libopencore_amrnb_encoder
AVCodec ff_libopencore_amrnb_decoder
AVCodec ff_libopencore_amrwb_decoder
Mode
Frame type (Table 1a in 3GPP TS 26.101)
av_cold void ff_af_queue_init(AVCodecContext *avctx, AudioFrameQueue *afq)
Initialize AudioFrameQueue.
void ff_af_queue_close(AudioFrameQueue *afq)
Close AudioFrameQueue.
void ff_af_queue_remove(AudioFrameQueue *afq, int nb_samples, int64_t *pts, int64_t *duration)
Remove frame(s) from the queue.
int ff_af_queue_add(AudioFrameQueue *afq, const AVFrame *f)
Add a frame to the queue.
Libavcodec external API header.
#define FF_COMPLIANCE_UNOFFICIAL
Allow unofficial extensions.
static av_cold int init(AVCodecContext *avctx)
size_t av_strlcatf(char *dst, size_t size, const char *fmt,...)
audio channel layout utility functions
common internal and external API header
int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
Get a buffer for a frame.
static void decode(AVCodecContext *dec_ctx, AVPacket *pkt, AVFrame *frame, FILE *outfile)
mode
Use these values in ebur128_init (or'ed).
int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int64_t size, int64_t min_size)
Check AVPacket size and/or allocate data.
const OptionDef options[]
#define AV_CH_LAYOUT_MONO
#define AV_CODEC_CAP_DELAY
Encoder or decoder requires flushing with NULL input at the end in order to give the complete and cor...
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() or get_encode_buffer() for allocating buffers and supports custom allocators.
#define AV_CODEC_CAP_CHANNEL_CONF
Codec should fill in channel configuration and samplerate instead of container.
#define AV_CODEC_CAP_SMALL_LAST_FRAME
Codec can be fed a final frame with a smaller size.
#define AVERROR_PATCHWELCOME
Not yet implemented in FFmpeg, patches welcome.
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
#define AV_LOG_WARNING
Something somehow does not look correct.
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
const char * av_default_item_name(void *ptr)
Return the context name.
void * av_mallocz_array(size_t nmemb, size_t size)
Allocate a memory block for an array with av_mallocz().
AVSampleFormat
Audio sample formats.
@ AV_SAMPLE_FMT_S16
signed 16 bits
#define LIBAVUTIL_VERSION_INT
common internal API header
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
void avpriv_report_missing_feature(void *avc, const char *msg,...) av_printf_format(2
Log a generic warning message about a missing feature.
static const AVClass av_class
#define AV_OPT_FLAG_AUDIO_PARAM
#define AV_OPT_FLAG_ENCODING_PARAM
a generic parameter which can be set by the user for muxing or encoding
Describe the class of an AVClass context structure.
const char * class_name
The name of the class; usually it is the same name as the context structure type to which the AVClass...
main external API structure.
enum AVSampleFormat sample_fmt
audio sample format
int strict_std_compliance
strictly follow the standard (MPEG-4, ...).
int64_t bit_rate
the average bitrate
int initial_padding
Audio only.
int sample_rate
samples per second
int frame_number
Frame counter, set by libavcodec.
int channels
number of audio channels
uint64_t channel_layout
Audio channel layout.
int frame_size
Number of samples per channel in an audio frame.
const char * name
Name of the codec implementation.
This structure describes decoded (raw) audio or video data.
int nb_samples
number of audio samples (per channel) described by this frame
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
This structure stores compressed data.
int64_t duration
Duration of this packet in AVStream->time_base units, 0 if unknown.
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...