X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Flibopencore-amr.c;h=763d80f2009bcba99f9a59f9bbb7ace236762d33;hb=bb198c4997d5036f3bf91de51e44f807115677d0;hp=fa72a221cf1302a25a2dbe938ec2534d4ed91458;hpb=a8ec07c933450eea929f632ee867383ebd55532a;p=ffmpeg diff --git a/libavcodec/libopencore-amr.c b/libavcodec/libopencore-amr.c index fa72a221cf1..763d80f2009 100644 --- a/libavcodec/libopencore-amr.c +++ b/libavcodec/libopencore-amr.c @@ -19,20 +19,29 @@ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ +#include "libavutil/avstring.h" +#include "libavutil/channel_layout.h" +#include "libavutil/common.h" +#include "libavutil/opt.h" #include "avcodec.h" +#include "audio_frame_queue.h" +#include "internal.h" -static void amr_decode_fix_avctx(AVCodecContext *avctx) +static int amr_decode_fix_avctx(AVCodecContext *avctx) { - const int is_amr_wb = 1 + (avctx->codec_id == CODEC_ID_AMR_WB); + const int is_amr_wb = 1 + (avctx->codec_id == AV_CODEC_ID_AMR_WB); - if (!avctx->sample_rate) - avctx->sample_rate = 8000 * is_amr_wb; + avctx->sample_rate = 8000 * is_amr_wb; - if (!avctx->channels) - avctx->channels = 1; + if (avctx->channels > 1) { + avpriv_report_missing_feature(avctx, "multi-channel AMR"); + return AVERROR_PATCHWELCOME; + } - avctx->frame_size = 160 * is_amr_wb; - avctx->sample_fmt = AV_SAMPLE_FMT_S16; + avctx->channels = 1; + avctx->channel_layout = AV_CH_LAYOUT_MONO; + avctx->sample_fmt = AV_SAMPLE_FMT_S16; + return 0; } #if CONFIG_LIBOPENCORE_AMRNB @@ -40,58 +49,29 @@ static void amr_decode_fix_avctx(AVCodecContext *avctx) #include #include -static const char nb_bitrate_unsupported[] = - "bitrate not supported: use one of 4.75k, 5.15k, 5.9k, 6.7k, 7.4k, 7.95k, 10.2k or 12.2k\n"; - -/* Common code for fixed and float version*/ -typedef struct AMR_bitrates { - int rate; - enum Mode mode; -} AMR_bitrates; - -/* Match desired bitrate */ -static int getBitrateMode(int bitrate) -{ - /* make the correspondance between bitrate and mode */ - AMR_bitrates rates[] = { { 4750, MR475}, - { 5150, MR515}, - { 5900, MR59}, - { 6700, MR67}, - { 7400, MR74}, - { 7950, MR795}, - {10200, MR102}, - {12200, MR122}, }; - int i; - - for (i = 0; i < 8; i++) - if (rates[i].rate == bitrate) - return rates[i].mode; - /* no bitrate matching, return an error */ - return -1; -} - typedef struct AMRContext { - int frameCount; - void *decState; - void *enstate; + AVClass *av_class; + void *dec_state; + void *enc_state; int enc_bitrate; + int enc_mode; + int enc_dtx; + int enc_last_frame; + AudioFrameQueue afq; } AMRContext; +#if CONFIG_LIBOPENCORE_AMRNB_DECODER static av_cold int amr_nb_decode_init(AVCodecContext *avctx) { - AMRContext *s = avctx->priv_data; - - s->frameCount = 0; - s->decState = Decoder_Interface_init(); - if (!s->decState) { - av_log(avctx, AV_LOG_ERROR, "Decoder_Interface_init error\n"); - return -1; - } + AMRContext *s = avctx->priv_data; + int ret; - amr_decode_fix_avctx(avctx); + if ((ret = amr_decode_fix_avctx(avctx)) < 0) + return ret; - if (avctx->channels > 1) { - av_log(avctx, AV_LOG_ERROR, "amr_nb: multichannel decoding not supported\n"); + s->dec_state = Decoder_Interface_init(); + if (!s->dec_state) { + av_log(avctx, AV_LOG_ERROR, "Decoder_Interface_init error\n"); return -1; } @@ -102,84 +82,135 @@ static av_cold int amr_nb_decode_close(AVCodecContext *avctx) { AMRContext *s = avctx->priv_data; - Decoder_Interface_exit(s->decState); + Decoder_Interface_exit(s->dec_state); + return 0; } static int amr_nb_decode_frame(AVCodecContext *avctx, void *data, - int *data_size, AVPacket *avpkt) + int *got_frame_ptr, AVPacket *avpkt) { + AVFrame *frame = data; const uint8_t *buf = avpkt->data; int buf_size = avpkt->size; - AMRContext *s = avctx->priv_data; - const uint8_t *amrData = buf; + AMRContext *s = avctx->priv_data; static const uint8_t block_size[16] = { 12, 13, 15, 17, 19, 20, 26, 31, 5, 0, 0, 0, 0, 0, 0, 0 }; enum Mode dec_mode; - int packet_size; + int packet_size, ret; + + ff_dlog(avctx, "amr_decode_frame buf=%p buf_size=%d frame_count=%d!!\n", + buf, buf_size, avctx->frame_number); - /* av_log(NULL, AV_LOG_DEBUG, "amr_decode_frame buf=%p buf_size=%d frameCount=%d!!\n", - buf, buf_size, s->frameCount); */ + /* get output buffer */ + frame->nb_samples = 160; + if ((ret = ff_get_buffer(avctx, frame, 0)) < 0) { + av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n"); + return ret; + } - dec_mode = (buf[0] >> 3) & 0x000F; + dec_mode = (buf[0] >> 3) & 0x000F; packet_size = block_size[dec_mode] + 1; if (packet_size > buf_size) { av_log(avctx, AV_LOG_ERROR, "amr frame too short (%u, should be %u)\n", buf_size, packet_size); - return -1; + return AVERROR_INVALIDDATA; } - s->frameCount++; - /* av_log(NULL, AV_LOG_DEBUG, "packet_size=%d amrData= 0x%X %X %X %X\n", - packet_size, amrData[0], amrData[1], amrData[2], amrData[3]); */ + ff_dlog(avctx, "packet_size=%d buf= 0x%X %X %X %X\n", + packet_size, buf[0], buf[1], buf[2], buf[3]); /* call decoder */ - Decoder_Interface_Decode(s->decState, amrData, data, 0); - *data_size = 160 * 2; + Decoder_Interface_Decode(s->dec_state, buf, (short *)frame->data[0], 0); + + *got_frame_ptr = 1; return packet_size; } AVCodec ff_libopencore_amrnb_decoder = { - "libopencore_amrnb", - AVMEDIA_TYPE_AUDIO, - CODEC_ID_AMR_NB, - sizeof(AMRContext), - amr_nb_decode_init, - NULL, - amr_nb_decode_close, - amr_nb_decode_frame, - .long_name = NULL_IF_CONFIG_SMALL("OpenCORE Adaptive Multi-Rate (AMR) Narrow-Band"), + .name = "libopencore_amrnb", + .long_name = NULL_IF_CONFIG_SMALL("OpenCORE AMR-NB (Adaptive Multi-Rate Narrow-Band)"), + .type = AVMEDIA_TYPE_AUDIO, + .id = AV_CODEC_ID_AMR_NB, + .priv_data_size = sizeof(AMRContext), + .init = amr_nb_decode_init, + .close = amr_nb_decode_close, + .decode = amr_nb_decode_frame, + .capabilities = AV_CODEC_CAP_DR1, +}; +#endif /* CONFIG_LIBOPENCORE_AMRNB_DECODER */ + +#if CONFIG_LIBOPENCORE_AMRNB_ENCODER +/* Common code for fixed and float version*/ +typedef struct AMR_bitrates { + int rate; + enum Mode mode; +} AMR_bitrates; + +/* Match desired bitrate */ +static int get_bitrate_mode(int bitrate, void *log_ctx) +{ + /* make the correspondance between bitrate and mode */ + static const AMR_bitrates rates[] = { + { 4750, MR475 }, { 5150, MR515 }, { 5900, MR59 }, { 6700, MR67 }, + { 7400, MR74 }, { 7950, MR795 }, { 10200, MR102 }, { 12200, MR122 } + }; + int i, best = -1, min_diff = 0; + char log_buf[200]; + + for (i = 0; i < 8; i++) { + if (rates[i].rate == bitrate) + return rates[i].mode; + if (best < 0 || abs(rates[i].rate - bitrate) < min_diff) { + best = i; + min_diff = abs(rates[i].rate - bitrate); + } + } + /* no bitrate matching exactly, log a warning */ + snprintf(log_buf, sizeof(log_buf), "bitrate not supported: use one of "); + for (i = 0; i < 8; i++) + av_strlcatf(log_buf, sizeof(log_buf), "%.2fk, ", rates[i].rate / 1000.f); + av_strlcatf(log_buf, sizeof(log_buf), "using %.2fk", rates[best].rate / 1000.f); + av_log(log_ctx, AV_LOG_WARNING, "%s\n", log_buf); + + return best; +} + +static const AVOption options[] = { + { "dtx", "Allow DTX (generate comfort noise)", offsetof(AMRContext, enc_dtx), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM }, + { NULL } +}; + +static const AVClass class = { + "libopencore_amrnb", av_default_item_name, options, LIBAVUTIL_VERSION_INT }; static av_cold int amr_nb_encode_init(AVCodecContext *avctx) { AMRContext *s = avctx->priv_data; - s->frameCount = 0; - if (avctx->sample_rate != 8000) { av_log(avctx, AV_LOG_ERROR, "Only 8000Hz sample rate supported\n"); - return -1; + return AVERROR(ENOSYS); } if (avctx->channels != 1) { av_log(avctx, AV_LOG_ERROR, "Only mono supported\n"); - return -1; + return AVERROR(ENOSYS); } avctx->frame_size = 160; - avctx->coded_frame = avcodec_alloc_frame(); + avctx->initial_padding = 50; + ff_af_queue_init(avctx, &s->afq); - s->enstate=Encoder_Interface_init(0); - if (!s->enstate) { + s->enc_state = Encoder_Interface_init(s->enc_dtx); + if (!s->enc_state) { av_log(avctx, AV_LOG_ERROR, "Encoder_Interface_init error\n"); return -1; } - if ((s->enc_bitrate = getBitrateMode(avctx->bit_rate)) < 0) { - av_log(avctx, AV_LOG_ERROR, nb_bitrate_unsupported); - return -1; - } + s->enc_mode = get_bitrate_mode(avctx->bit_rate, avctx); + s->enc_bitrate = avctx->bit_rate; return 0; } @@ -188,101 +219,140 @@ static av_cold int amr_nb_encode_close(AVCodecContext *avctx) { AMRContext *s = avctx->priv_data; - Encoder_Interface_exit(s->enstate); - av_freep(&avctx->coded_frame); + Encoder_Interface_exit(s->enc_state); + ff_af_queue_close(&s->afq); return 0; } -static int amr_nb_encode_frame(AVCodecContext *avctx, - unsigned char *frame/*out*/, - int buf_size, void *data/*in*/) +static int amr_nb_encode_frame(AVCodecContext *avctx, AVPacket *avpkt, + const AVFrame *frame, int *got_packet_ptr) { AMRContext *s = avctx->priv_data; - int written; + int written, ret; + int16_t *flush_buf = NULL; + const int16_t *samples = frame ? (const int16_t *)frame->data[0] : NULL; - if ((s->enc_bitrate = getBitrateMode(avctx->bit_rate)) < 0) { - av_log(avctx, AV_LOG_ERROR, nb_bitrate_unsupported); - return -1; + if (s->enc_bitrate != avctx->bit_rate) { + s->enc_mode = get_bitrate_mode(avctx->bit_rate, avctx); + s->enc_bitrate = avctx->bit_rate; } - written = Encoder_Interface_Encode(s->enstate, s->enc_bitrate, data, - frame, 0); - /* av_log(NULL, AV_LOG_DEBUG, "amr_nb_encode_frame encoded %u bytes, bitrate %u, first byte was %#02x\n", - written, s->enc_bitrate, frame[0] ); */ + if ((ret = ff_alloc_packet(avpkt, 32))) { + av_log(avctx, AV_LOG_ERROR, "Error getting output packet\n"); + return ret; + } - return written; + if (frame) { + if (frame->nb_samples < avctx->frame_size) { + flush_buf = av_mallocz(avctx->frame_size * sizeof(*flush_buf)); + if (!flush_buf) + return AVERROR(ENOMEM); + memcpy(flush_buf, samples, frame->nb_samples * sizeof(*flush_buf)); + samples = flush_buf; + if (frame->nb_samples < avctx->frame_size - avctx->initial_padding) + s->enc_last_frame = -1; + } + if ((ret = ff_af_queue_add(&s->afq, frame)) < 0) { + av_freep(&flush_buf); + return ret; + } + } else { + if (s->enc_last_frame < 0) + return 0; + flush_buf = av_mallocz(avctx->frame_size * sizeof(*flush_buf)); + if (!flush_buf) + return AVERROR(ENOMEM); + samples = flush_buf; + s->enc_last_frame = -1; + } + + written = Encoder_Interface_Encode(s->enc_state, s->enc_mode, samples, + avpkt->data, 0); + ff_dlog(avctx, "amr_nb_encode_frame encoded %u bytes, bitrate %u, first byte was %#02x\n", + written, s->enc_mode, frame[0]); + + /* Get the next frame pts/duration */ + ff_af_queue_remove(&s->afq, avctx->frame_size, &avpkt->pts, + &avpkt->duration); + + avpkt->size = written; + *got_packet_ptr = 1; + av_freep(&flush_buf); + return 0; } AVCodec ff_libopencore_amrnb_encoder = { - "libopencore_amrnb", - AVMEDIA_TYPE_AUDIO, - CODEC_ID_AMR_NB, - sizeof(AMRContext), - amr_nb_encode_init, - amr_nb_encode_frame, - amr_nb_encode_close, - NULL, - .sample_fmts = (const enum AVSampleFormat[]){AV_SAMPLE_FMT_S16,AV_SAMPLE_FMT_NONE}, - .long_name = NULL_IF_CONFIG_SMALL("OpenCORE Adaptive Multi-Rate (AMR) Narrow-Band"), + .name = "libopencore_amrnb", + .long_name = NULL_IF_CONFIG_SMALL("OpenCORE AMR-NB (Adaptive Multi-Rate Narrow-Band)"), + .type = AVMEDIA_TYPE_AUDIO, + .id = AV_CODEC_ID_AMR_NB, + .priv_data_size = sizeof(AMRContext), + .init = amr_nb_encode_init, + .encode2 = amr_nb_encode_frame, + .close = amr_nb_encode_close, + .capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_SMALL_LAST_FRAME, + .sample_fmts = (const enum AVSampleFormat[]){ AV_SAMPLE_FMT_S16, + AV_SAMPLE_FMT_NONE }, + .priv_class = &class, }; +#endif /* CONFIG_LIBOPENCORE_AMRNB_ENCODER */ -#endif +#endif /* CONFIG_LIBOPENCORE_AMRNB */ /* -----------AMR wideband ------------*/ -#if CONFIG_LIBOPENCORE_AMRWB +#if CONFIG_LIBOPENCORE_AMRWB_DECODER #include #include typedef struct AMRWBContext { - int frameCount; void *state; } AMRWBContext; static av_cold int amr_wb_decode_init(AVCodecContext *avctx) { AMRWBContext *s = avctx->priv_data; + int ret; - s->frameCount = 0; - s->state = D_IF_init(); + if ((ret = amr_decode_fix_avctx(avctx)) < 0) + return ret; - amr_decode_fix_avctx(avctx); - - if (avctx->channels > 1) { - av_log(avctx, AV_LOG_ERROR, "amr_wb: multichannel decoding not supported\n"); - return -1; - } + s->state = D_IF_init(); return 0; } static int amr_wb_decode_frame(AVCodecContext *avctx, void *data, - int *data_size, AVPacket *avpkt) + int *got_frame_ptr, AVPacket *avpkt) { + AVFrame *frame = data; const uint8_t *buf = avpkt->data; int buf_size = avpkt->size; - AMRWBContext *s = avctx->priv_data; - const uint8_t *amrData = buf; - int mode; + AMRWBContext *s = avctx->priv_data; + int mode, ret; int packet_size; static const uint8_t block_size[16] = {18, 24, 33, 37, 41, 47, 51, 59, 61, 6, 6, 0, 0, 0, 1, 1}; - if (!buf_size) - /* nothing to do */ - return 0; + /* get output buffer */ + frame->nb_samples = 320; + if ((ret = ff_get_buffer(avctx, frame, 0)) < 0) { + av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n"); + return ret; + } - mode = (amrData[0] >> 3) & 0x000F; + mode = (buf[0] >> 3) & 0x000F; packet_size = block_size[mode]; if (packet_size > buf_size) { av_log(avctx, AV_LOG_ERROR, "amr frame too short (%u, should be %u)\n", buf_size, packet_size + 1); - return -1; + return AVERROR_INVALIDDATA; } - s->frameCount++; - D_IF_decode(s->state, amrData, data, _good_frame); - *data_size = 320 * 2; + D_IF_decode(s->state, buf, (short *)frame->data[0], _good_frame); + + *got_frame_ptr = 1; + return packet_size; } @@ -295,15 +365,15 @@ static int amr_wb_decode_close(AVCodecContext *avctx) } AVCodec ff_libopencore_amrwb_decoder = { - "libopencore_amrwb", - AVMEDIA_TYPE_AUDIO, - CODEC_ID_AMR_WB, - sizeof(AMRWBContext), - amr_wb_decode_init, - NULL, - amr_wb_decode_close, - amr_wb_decode_frame, - .long_name = NULL_IF_CONFIG_SMALL("OpenCORE Adaptive Multi-Rate (AMR) Wide-Band"), + .name = "libopencore_amrwb", + .long_name = NULL_IF_CONFIG_SMALL("OpenCORE AMR-WB (Adaptive Multi-Rate Wide-Band)"), + .type = AVMEDIA_TYPE_AUDIO, + .id = AV_CODEC_ID_AMR_WB, + .priv_data_size = sizeof(AMRWBContext), + .init = amr_wb_decode_init, + .close = amr_wb_decode_close, + .decode = amr_wb_decode_frame, + .capabilities = AV_CODEC_CAP_DR1, }; -#endif /* CONFIG_LIBOPENCORE_AMRWB */ +#endif /* CONFIG_LIBOPENCORE_AMRWB_DECODER */