45 #define BITSTREAM_READER_LE
69 float *aptr, *bptr, *pptr, val, pval;
91 for (i = 0; i < 2; i++) {
107 memset(&aptr[NELLY_FILL_LEN], 0,
108 (NELLY_BUF_LEN - NELLY_FILL_LEN) *
sizeof(
float));
115 memcpy(s->
state, s->
imdct_out + NELLY_BUF_LEN,
sizeof(
float)*NELLY_BUF_LEN);
143 if (!ff_sine_128[127])
155 int *got_frame_ptr,
AVPacket *avpkt)
157 const uint8_t *buf = avpkt->
data;
158 int buf_size = avpkt->
size;
161 int16_t *samples_s16;
171 buf_size % NELLY_BLOCK_LEN);
187 samples_s16 = (int16_t *)s->
frame.
data[0];
190 for (i=0 ; i<blocks ; i++) {
218 .
name =
"nellymoser",
void * av_mallocz(size_t size)
Allocate a block of size bytes with alignment suitable for all memory accesses (including vectors if ...
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
static unsigned int get_bits(GetBitContext *s, int n)
Read 1-25 bits.
FmtConvertContext fmt_conv
static void skip_bits_long(GetBitContext *s, int n)
AVFrame * coded_frame
the picture in the bitstream
#define AV_LOG_WARNING
Something somehow does not look correct.
#define CODEC_CAP_PARAM_CHANGE
Codec supports changed parameters at any point.
#define DECLARE_ALIGNED(n, t, v)
const float ff_nelly_dequantization_table[127]
static av_cold int decode_end(AVCodecContext *avctx)
#define NELLY_DETAIL_BITS
void av_freep(void *arg)
Free a memory block which has been allocated with av_malloc(z)() or av_realloc() and set the pointer ...
const uint16_t ff_nelly_init_table[64]
static int decode(MimicContext *ctx, int quality, int num_coeffs, int is_iframe)
enum AVSampleFormat sample_fmt
audio sample format
struct NellyMoserDecodeContext NellyMoserDecodeContext
bitstream reader API header.
av_cold void dsputil_init(DSPContext *c, AVCodecContext *avctx)
static int init(AVCodecParserContext *s)
void(* vector_fmul_add)(float *dst, const float *src0, const float *src1, const float *src2, int len)
audio conversion routines
#define CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.
static int decode_tag(AVCodecContext *avctx, void *data, int *got_frame_ptr, AVPacket *avpkt)
enum AVSampleFormat request_sample_fmt
Used to request a sample format from the decoder.
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
float state[NELLY_BUF_LEN]
void av_log(void *avcl, int level, const char *fmt,...)
const char * name
Name of the codec implementation.
uint64_t channel_layout
Audio channel layout.
void(* imdct_calc)(struct FFTContext *s, FFTSample *output, const FFTSample *input)
AVCodec ff_nellymoser_decoder
const uint8_t ff_nelly_band_sizes_table[NELLY_BANDS]
void(* float_to_int16)(int16_t *dst, const float *src, long len)
Convert an array of float to an array of int16_t.
#define NELLY_HEADER_BITS
int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame)
static void nelly_decode_block(NellyMoserDecodeContext *s, const unsigned char block[NELLY_BLOCK_LEN], float audio[NELLY_SAMPLES])
static av_cold int decode_init(AVCodecContext *avctx)
float imdct_out[NELLY_BUF_LEN *2]
main external API structure.
static void close(AVCodecParserContext *s)
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
static unsigned int av_lfg_get(AVLFG *c)
Get the next random unsigned 32-bit number using an ALFG.
static int init_get_bits(GetBitContext *s, const uint8_t *buffer, int bit_size)
Initialize GetBitContext.
void(* vector_fmul_reverse)(float *dst, const float *src0, const float *src1, int len)
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
common internal api header.
void av_cold av_lfg_init(AVLFG *c, unsigned int seed)
AVSampleFormat
all in native-endian format
av_cold void ff_fmt_convert_init(FmtConvertContext *c, AVCodecContext *avctx)
const int16_t ff_nelly_delta_table[32]
void avcodec_get_frame_defaults(AVFrame *pic)
Set the fields of the given AVFrame to default values.
void ff_nelly_get_sample_bits(const float *buf, int *bits)
#define AV_CH_LAYOUT_MONO
The 3 alphanumeric copyright notices are md5summed they are from the original implementors.
int nb_samples
number of audio samples (per channel) described by this frame
void ff_init_ff_sine_windows(int index)
initialize the specified entry of ff_sine_windows