22 #include "libavutil/avstring.h"
23 #include "libavutil/channel_layout.h"
24 #include "libavutil/common.h"
25 #include "libavutil/opt.h"
48 #if CONFIG_LIBOPENCORE_AMRNB
50 #include <opencore-amrnb/interf_dec.h>
51 #include <opencore-amrnb/interf_enc.h>
64 #if CONFIG_LIBOPENCORE_AMRNB_DECODER
73 s->dec_state = Decoder_Interface_init();
86 Decoder_Interface_exit(s->dec_state);
96 int buf_size = avpkt->
size;
98 static const uint8_t block_size[16] = { 12, 13, 15, 17, 19, 20, 26, 31, 5, 0, 0, 0, 0, 0, 0, 0 };
100 int packet_size,
ret;
102 av_dlog(avctx,
"amr_decode_frame buf=%p buf_size=%d frame_count=%d!!\n",
110 dec_mode = (buf[0] >> 3) & 0x000F;
111 packet_size = block_size[dec_mode] + 1;
113 if (packet_size > buf_size) {
115 buf_size, packet_size);
119 av_dlog(avctx,
"packet_size=%d buf= 0x%X %X %X %X\n",
120 packet_size, buf[0], buf[1], buf[2], buf[3]);
122 Decoder_Interface_Decode(s->dec_state, buf, (
short *)frame->
data[0], 0);
129 AVCodec ff_libopencore_amrnb_decoder = {
130 .
name =
"libopencore_amrnb",
135 .
init = amr_nb_decode_init,
136 .
close = amr_nb_decode_close,
137 .
decode = amr_nb_decode_frame,
142 #if CONFIG_LIBOPENCORE_AMRNB_ENCODER
144 typedef struct AMR_bitrates {
150 static int get_bitrate_mode(
int bitrate,
void *log_ctx)
153 static const AMR_bitrates
rates[] = {
154 { 4750, MR475 }, { 5150, MR515 }, { 5900, MR59 }, { 6700, MR67 },
155 { 7400, MR74 }, { 7950, MR795 }, { 10200, MR102 }, { 12200, MR122 }
157 int i, best = -1, min_diff = 0;
160 for (i = 0; i < 8; i++) {
161 if (rates[i].rate == bitrate)
162 return rates[i].mode;
163 if (best < 0 || abs(rates[i].rate - bitrate) < min_diff) {
165 min_diff = abs(rates[i].rate - bitrate);
169 snprintf(log_buf,
sizeof(log_buf),
"bitrate not supported: use one of ");
170 for (i = 0; i < 8; i++)
171 av_strlcatf(log_buf,
sizeof(log_buf),
"%.2fk, ", rates[i].rate / 1000.f);
172 av_strlcatf(log_buf,
sizeof(log_buf),
"using %.2fk", rates[best].rate / 1000.f);
183 static const AVClass amrnb_class = {
205 s->enc_state = Encoder_Interface_init(s->enc_dtx);
212 s->enc_mode = get_bitrate_mode(avctx->
bit_rate, avctx);
222 Encoder_Interface_exit(s->enc_state);
228 const AVFrame *frame,
int *got_packet_ptr)
232 int16_t *flush_buf = NULL;
233 const int16_t *samples = frame ? (
const int16_t *)frame->
data[0] : NULL;
236 s->enc_mode = get_bitrate_mode(avctx->
bit_rate, avctx);
248 memcpy(flush_buf, samples, frame->
nb_samples *
sizeof(*flush_buf));
251 s->enc_last_frame = -1;
258 if (s->enc_last_frame < 0)
264 s->enc_last_frame = -1;
267 written = Encoder_Interface_Encode(s->enc_state, s->enc_mode, samples,
269 av_dlog(avctx,
"amr_nb_encode_frame encoded %u bytes, bitrate %u, first byte was %#02x\n",
270 written, s->enc_mode, avpkt->
data[0]);
276 avpkt->
size = written;
282 AVCodec ff_libopencore_amrnb_encoder = {
283 .
name =
"libopencore_amrnb",
288 .
init = amr_nb_encode_init,
289 .encode2 = amr_nb_encode_frame,
290 .
close = amr_nb_encode_close,
294 .priv_class = &amrnb_class,
301 #if CONFIG_LIBOPENCORE_AMRWB_DECODER
303 #include <opencore-amrwb/dec_if.h>
304 #include <opencore-amrwb/if_rom.h>
318 s->
state = D_IF_init();
324 int *got_frame_ptr,
AVPacket *avpkt)
328 int buf_size = avpkt->
size;
332 static const uint8_t block_size[16] = {18, 24, 33, 37, 41, 47, 51, 59, 61, 6, 6, 0, 0, 0, 1, 1};
339 mode = (buf[0] >> 3) & 0x000F;
340 packet_size = block_size[
mode];
342 if (packet_size > buf_size) {
344 buf_size, packet_size + 1);
352 D_IF_decode(s->
state, buf, (
short *)frame->
data[0], _good_frame);
367 AVCodec ff_libopencore_amrwb_decoder = {
368 .
name =
"libopencore_amrwb",
373 .
init = amr_wb_decode_init,
374 .
close = amr_wb_decode_close,
375 .
decode = amr_wb_decode_frame,
int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int64_t size)
Check AVPacket size and/or allocate data.
#define AVERROR_PATCHWELCOME
This structure describes decoded (raw) audio or video data.
#define AV_LOG_WARNING
Something somehow does not look correct.
#define LIBAVUTIL_VERSION_INT
static av_cold int init(AVCodecContext *avctx)
void av_log(void *avcl, int level, const char *fmt,...) av_printf_format(3
Send the specified message to the log if the level is less than or equal to the current av_log_level...
av_dlog(ac->avr,"%d samples - audio_convert: %s to %s (%s)\n", 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 *ptr)
Free a memory block which has been allocated with av_malloc(z)() or av_realloc() and set the pointer ...
if((e=av_dict_get(options,"", NULL, AV_DICT_IGNORE_SUFFIX)))
const char * av_default_item_name(void *ctx)
Return the context name.
enum AVSampleFormat sample_fmt
audio sample format
av_cold void ff_af_queue_init(AVCodecContext *avctx, AudioFrameQueue *afq)
Initialize AudioFrameQueue.
Mode
Frame type (Table 1a in 3GPP TS 26.101)
const char * name
Name of the codec implementation.
#define CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.
int duration
Duration of this packet in AVStream->time_base units, 0 if unknown.
const OptionDef options[]
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
static int amr_decode_fix_avctx(AVCodecContext *avctx)
#define AV_OPT_FLAG_AUDIO_PARAM
#define CODEC_CAP_DELAY
Encoder or decoder requires flushing with NULL input at the end in order to give the complete and cor...
#define CODEC_CAP_SMALL_LAST_FRAME
Codec can be fed a final frame with a smaller size.
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
int ff_af_queue_add(AudioFrameQueue *afq, const AVFrame *f)
Add a frame to the queue.
Libavcodec external API header.
uint64_t channel_layout
Audio channel layout.
int bit_rate
the average bitrate
int frame_size
Number of samples per channel in an audio frame.
AVSampleFormat
Audio Sample Formats.
int sample_rate
samples per second
main external API structure.
static void close(AVCodecParserContext *s)
int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
Get a buffer for a frame.
Describe the class of an AVClass context structure.
#define FF_COMPLIANCE_UNOFFICIAL
Allow unofficial extensions.
AVFrame * coded_frame
the picture in the bitstream
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
common internal api header.
#define AV_OPT_FLAG_ENCODING_PARAM
a generic parameter which can be set by the user for muxing or encoding
#define AVERROR_INVALIDDATA
void ff_af_queue_remove(AudioFrameQueue *afq, int nb_samples, int64_t *pts, int *duration)
Remove frame(s) from the queue.
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.
static int decode(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
#define AV_CH_LAYOUT_MONO
This structure stores compressed data.
int nb_samples
number of audio samples (per channel) described by this frame
int strict_std_compliance
strictly follow the standard (MPEG4, ...).
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
size_t av_strlcatf(char *dst, size_t size, const char *fmt,...) av_printf_format(3
Append output to a string, according to a format.
void * av_mallocz(size_t size) av_malloc_attrib 1(1)
Allocate a block of size bytes with alignment suitable for all memory accesses (including vectors if ...