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https://github.com/FFmpeg/FFmpeg.git
synced 2024-11-26 19:01:44 +02:00
parent
8754ccd3b3
commit
898ea658c8
@ -763,6 +763,7 @@ OBJS-$(CONFIG_ADPCM_G722_ENCODER) += g722.o g722dsp.o g722enc.o
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OBJS-$(CONFIG_ADPCM_G726_DECODER) += g726.o
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OBJS-$(CONFIG_ADPCM_G726_ENCODER) += g726.o
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OBJS-$(CONFIG_ADPCM_G726LE_DECODER) += g726.o
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OBJS-$(CONFIG_ADPCM_G726LE_ENCODER) += g726.o
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OBJS-$(CONFIG_ADPCM_IMA_AMV_DECODER) += adpcm.o adpcm_data.o
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OBJS-$(CONFIG_ADPCM_IMA_APC_DECODER) += adpcm.o adpcm_data.o
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OBJS-$(CONFIG_ADPCM_IMA_DAT4_DECODER) += adpcm.o adpcm_data.o
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@ -549,7 +549,7 @@ static void register_all(void)
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REGISTER_DECODER(ADPCM_EA_XAS, adpcm_ea_xas);
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REGISTER_ENCDEC (ADPCM_G722, adpcm_g722);
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REGISTER_ENCDEC (ADPCM_G726, adpcm_g726);
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REGISTER_DECODER(ADPCM_G726LE, adpcm_g726le);
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REGISTER_ENCDEC (ADPCM_G726LE, adpcm_g726le);
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REGISTER_DECODER(ADPCM_IMA_AMV, adpcm_ima_amv);
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REGISTER_DECODER(ADPCM_IMA_APC, adpcm_ima_apc);
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REGISTER_DECODER(ADPCM_IMA_DAT4, adpcm_ima_dat4);
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@ -292,7 +292,7 @@ static av_cold int g726_reset(G726Context *c)
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return 0;
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}
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#if CONFIG_ADPCM_G726_ENCODER
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#if CONFIG_ADPCM_G726_ENCODER || CONFIG_ADPCM_G726LE_ENCODER
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static int16_t g726_encode(G726Context* c, int16_t sig)
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{
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uint8_t i;
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@ -308,6 +308,8 @@ static av_cold int g726_encode_init(AVCodecContext *avctx)
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{
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G726Context* c = avctx->priv_data;
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c->little_endian = !strcmp(avctx->codec->name, "g726le");
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if (avctx->strict_std_compliance > FF_COMPLIANCE_UNOFFICIAL &&
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avctx->sample_rate != 8000) {
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av_log(avctx, AV_LOG_ERROR, "Sample rates other than 8kHz are not "
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@ -356,9 +358,17 @@ static int g726_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
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init_put_bits(&pb, avpkt->data, avpkt->size);
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for (i = 0; i < frame->nb_samples; i++)
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put_bits(&pb, c->code_size, g726_encode(c, *samples++));
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if (c->little_endian) {
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put_bits_le(&pb, c->code_size, g726_encode(c, *samples++));
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} else {
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put_bits(&pb, c->code_size, g726_encode(c, *samples++));
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}
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flush_put_bits(&pb);
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if (c->little_endian) {
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flush_put_bits_le(&pb);
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} else {
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flush_put_bits(&pb);
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}
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avpkt->size = out_size;
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*got_packet_ptr = 1;
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@ -372,6 +382,13 @@ static const AVOption options[] = {
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{ NULL },
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};
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static const AVCodecDefault defaults[] = {
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{ "b", "0" },
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{ NULL },
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};
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#endif
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#if CONFIG_ADPCM_G726_ENCODER
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static const AVClass g726_class = {
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.class_name = "g726",
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.item_name = av_default_item_name,
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@ -379,11 +396,6 @@ static const AVClass g726_class = {
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.version = LIBAVUTIL_VERSION_INT,
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};
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static const AVCodecDefault defaults[] = {
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{ "b", "0" },
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{ NULL },
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};
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AVCodec ff_adpcm_g726_encoder = {
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.name = "g726",
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.long_name = NULL_IF_CONFIG_SMALL("G.726 ADPCM"),
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@ -400,6 +412,30 @@ AVCodec ff_adpcm_g726_encoder = {
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};
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#endif
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#if CONFIG_ADPCM_G726LE_ENCODER
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static const AVClass g726le_class = {
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.class_name = "g726le",
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.item_name = av_default_item_name,
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.option = options,
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.version = LIBAVUTIL_VERSION_INT,
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};
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AVCodec ff_adpcm_g726le_encoder = {
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.name = "g726le",
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.long_name = NULL_IF_CONFIG_SMALL("G.726 little endian ADPCM (\"right-justified\")"),
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.type = AVMEDIA_TYPE_AUDIO,
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.id = AV_CODEC_ID_ADPCM_G726LE,
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.priv_data_size = sizeof(G726Context),
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.init = g726_encode_init,
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.encode2 = g726_encode_frame,
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.capabilities = AV_CODEC_CAP_SMALL_LAST_FRAME,
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.sample_fmts = (const enum AVSampleFormat[]){ AV_SAMPLE_FMT_S16,
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AV_SAMPLE_FMT_NONE },
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.priv_class = &g726le_class,
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.defaults = defaults,
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};
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#endif
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#if CONFIG_ADPCM_G726_DECODER || CONFIG_ADPCM_G726LE_DECODER
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static av_cold int g726_decode_init(AVCodecContext *avctx)
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{
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@ -119,6 +119,18 @@ static inline void flush_put_bits(PutBitContext *s)
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s->bit_buf = 0;
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}
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static inline void flush_put_bits_le(PutBitContext *s)
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{
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while (s->bit_left < 32) {
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av_assert0(s->buf_ptr < s->buf_end);
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*s->buf_ptr++ = s->bit_buf;
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s->bit_buf >>= 8;
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s->bit_left += 8;
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}
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s->bit_left = 32;
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s->bit_buf = 0;
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}
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#ifdef BITSTREAM_WRITER_LE
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#define avpriv_align_put_bits align_put_bits_unsupported_here
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#define avpriv_put_string ff_put_string_unsupported_here
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@ -197,6 +209,34 @@ static inline void put_bits(PutBitContext *s, int n, unsigned int value)
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s->bit_left = bit_left;
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}
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static inline void put_bits_le(PutBitContext *s, int n, unsigned int value)
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{
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unsigned int bit_buf;
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int bit_left;
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av_assert2(n <= 31 && value < (1U << n));
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bit_buf = s->bit_buf;
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bit_left = s->bit_left;
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bit_buf |= value << (32 - bit_left);
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if (n >= bit_left) {
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if (3 < s->buf_end - s->buf_ptr) {
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AV_WL32(s->buf_ptr, bit_buf);
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s->buf_ptr += 4;
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} else {
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av_log(NULL, AV_LOG_ERROR, "Internal error, put_bits buffer too small\n");
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av_assert2(0);
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}
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bit_buf = value >> bit_left;
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bit_left += 32;
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}
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bit_left -= n;
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s->bit_buf = bit_buf;
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s->bit_left = bit_left;
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}
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static inline void put_sbits(PutBitContext *pb, int n, int32_t value)
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{
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av_assert2(n >= 0 && n <= 31);
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@ -28,7 +28,7 @@
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#include "libavutil/version.h"
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#define LIBAVCODEC_VERSION_MAJOR 57
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#define LIBAVCODEC_VERSION_MINOR 102
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#define LIBAVCODEC_VERSION_MINOR 103
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#define LIBAVCODEC_VERSION_MICRO 100
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#define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
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