49 #if CONFIG_LIBOPENCORE_AMRNB 51 #include <opencore-amrnb/interf_dec.h> 52 #include <opencore-amrnb/interf_enc.h> 65 #if CONFIG_LIBOPENCORE_AMRNB_DECODER 74 s->dec_state = Decoder_Interface_init();
87 Decoder_Interface_exit(s->dec_state);
97 int buf_size = avpkt->
size;
99 static const uint8_t block_size[16] = { 12, 13, 15, 17, 19, 20, 26, 31, 5, 0, 0, 0, 0, 0, 0, 0 };
101 int packet_size, ret;
103 ff_dlog(avctx,
"amr_decode_frame buf=%p buf_size=%d frame_count=%d!!\n",
113 dec_mode = (buf[0] >> 3) & 0x000F;
114 packet_size = block_size[dec_mode] + 1;
116 if (packet_size > buf_size) {
118 buf_size, packet_size);
122 ff_dlog(avctx,
"packet_size=%d buf= 0x%"PRIx8
" %"PRIx8
" %"PRIx8
" %"PRIx8
"\n",
123 packet_size, buf[0], buf[1], buf[2], buf[3]);
125 Decoder_Interface_Decode(s->dec_state, buf, (
short *)frame->
data[0], 0);
132 AVCodec ff_libopencore_amrnb_decoder = {
133 .
name =
"libopencore_amrnb",
138 .
init = amr_nb_decode_init,
139 .close = amr_nb_decode_close,
140 .
decode = amr_nb_decode_frame,
145 #if CONFIG_LIBOPENCORE_AMRNB_ENCODER 147 typedef struct AMR_bitrates {
153 static int get_bitrate_mode(
int bitrate,
void *log_ctx)
156 static const AMR_bitrates
rates[] = {
157 { 4750, MR475 }, { 5150, MR515 }, { 5900, MR59 }, { 6700, MR67 },
158 { 7400, MR74 }, { 7950, MR795 }, { 10200, MR102 }, { 12200, MR122 }
160 int i, best = -1, min_diff = 0;
163 for (i = 0; i < 8; i++) {
164 if (rates[i].rate == bitrate)
165 return rates[i].mode;
166 if (best < 0 || abs(rates[i].rate - bitrate) < min_diff) {
168 min_diff = abs(rates[i].rate - bitrate);
172 snprintf(log_buf,
sizeof(log_buf),
"bitrate not supported: use one of ");
173 for (i = 0; i < 8; i++)
174 av_strlcatf(log_buf,
sizeof(log_buf),
"%.2fk, ", rates[i].rate / 1000.f);
175 av_strlcatf(log_buf,
sizeof(log_buf),
"using %.2fk", rates[best].rate / 1000.f);
208 s->enc_state = Encoder_Interface_init(s->enc_dtx);
214 s->enc_mode = get_bitrate_mode(avctx->
bit_rate, avctx);
224 Encoder_Interface_exit(s->enc_state);
234 int16_t *flush_buf =
NULL;
235 const int16_t *samples = frame ? (
const int16_t *)frame->
data[0] :
NULL;
238 s->enc_mode = get_bitrate_mode(avctx->
bit_rate, avctx);
252 memcpy(flush_buf, samples, frame->
nb_samples *
sizeof(*flush_buf));
255 s->enc_last_frame = -1;
262 if (s->enc_last_frame < 0)
268 s->enc_last_frame = -1;
271 written = Encoder_Interface_Encode(s->enc_state, s->enc_mode, samples,
273 ff_dlog(avctx,
"amr_nb_encode_frame encoded %d bytes, bitrate %d, first byte was %#02"PRIx8
"\n",
274 written, s->enc_mode, *frame->
data[0]);
280 avpkt->
size = written;
286 AVCodec ff_libopencore_amrnb_encoder = {
287 .
name =
"libopencore_amrnb",
292 .
init = amr_nb_encode_init,
293 .encode2 = amr_nb_encode_frame,
294 .close = amr_nb_encode_close,
298 .priv_class = &
class,
305 #if CONFIG_LIBOPENCORE_AMRWB_DECODER 307 #include <opencore-amrwb/dec_if.h> 308 #include <opencore-amrwb/if_rom.h> 322 s->
state = D_IF_init();
328 int *got_frame_ptr,
AVPacket *avpkt)
332 int buf_size = avpkt->
size;
336 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);
354 D_IF_decode(s->
state, buf, (
short *)frame->
data[0], _good_frame);
369 AVCodec ff_libopencore_amrwb_decoder = {
370 .
name =
"libopencore_amrwb",
375 .
init = amr_wb_decode_init,
376 .close = amr_wb_decode_close,
377 .
decode = amr_wb_decode_frame,
void ff_af_queue_remove(AudioFrameQueue *afq, int nb_samples, int64_t *pts, int64_t *duration)
Remove frame(s) from the queue.
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
This structure describes decoded (raw) audio or video data.
#define AV_LOG_WARNING
Something somehow does not look correct.
#define AV_OPT_FLAG_AUDIO_PARAM
av_log(ac->avr, AV_LOG_TRACE, "%d samples - audio_convert: %s to %s (%s)\, len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt), use_generic ? ac->func_descr_generic :ac->func_descr)
void av_freep(void *arg)
Free a memory block which has been allocated with av_malloc(z)() or av_realloc() and set the pointer ...
#define AV_CODEC_CAP_DELAY
Encoder or decoder requires flushing with NULL input at the end in order to give the complete and cor...
enum AVSampleFormat sample_fmt
audio sample format
av_cold void ff_af_queue_init(AVCodecContext *avctx, AudioFrameQueue *afq)
Initialize AudioFrameQueue.
int64_t duration
Duration of this packet in AVStream->time_base units, 0 if unknown.
Mode
Frame type (Table 1a in 3GPP TS 26.101)
AMRNBFrame frame
decoded AMR parameters (lsf coefficients, codebook indexes, etc)
#define AV_OPT_FLAG_ENCODING_PARAM
a generic parameter which can be set by the user for muxing or encoding
const OptionDef options[]
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
static int amr_decode_fix_avctx(AVCodecContext *avctx)
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
int initial_padding
Audio only.
const char * name
Name of the codec implementation.
int ff_af_queue_add(AudioFrameQueue *afq, const AVFrame *f)
Add a frame to the queue.
uint64_t channel_layout
Audio channel layout.
int bit_rate
the average bitrate
audio channel layout utility functions
#define AV_CODEC_CAP_SMALL_LAST_FRAME
Codec can be fed a final frame with a smaller size.
static int decode(AVCodecContext *avctx, AVFrame *frame, int *got_frame, AVPacket *pkt)
int ff_alloc_packet(AVPacket *avpkt, int size)
Check AVPacket size and/or allocate data.
if(ac->has_optimized_func)
#define AVERROR_PATCHWELCOME
Not yet implemented in Libav, patches welcome.
int frame_size
Number of samples per channel in an audio frame.
Libavcodec external API header.
AVSampleFormat
Audio Sample Formats.
int sample_rate
samples per second
main external API structure.
int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
Get a buffer for a frame.
Describe the class of an AVClass context structure.
size_t av_strlcatf(char *dst, size_t size, const char *fmt,...)
void avpriv_report_missing_feature(void *avc, const char *msg,...) av_printf_format(2
Log a generic warning message about a missing feature.
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
common internal api header.
common internal and external API header
static av_cold int init(AVCodecParserContext *s)
int channels
number of audio channels
void ff_af_queue_close(AudioFrameQueue *afq)
Close AudioFrameQueue.
static enum AVSampleFormat sample_fmts[]
int frame_number
Frame counter, set by libavcodec.
#define AV_CH_LAYOUT_MONO
This structure stores compressed data.
int nb_samples
number of audio samples (per channel) described by this frame
void * av_mallocz(size_t size)
Allocate a block of size bytes with alignment suitable for all memory accesses (including vectors if ...
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...