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@@ -70,6 +70,7 @@ |
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#include "libavutil/opt.h" |
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#include "avcodec.h" |
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#include "internal.h" |
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#include "audio_frame_queue.h" |
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typedef struct { |
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AVClass *class; ///< AVClass for private options |
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@@ -81,8 +82,7 @@ typedef struct { |
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int cbr_quality; ///< CBR quality 0 to 10 |
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int abr; ///< flag to enable ABR |
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int pkt_frame_count; ///< frame count for the current packet |
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int64_t next_pts; ///< next pts, in sample_rate time base |
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int pkt_sample_count; ///< sample count in the current packet |
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AudioFrameQueue afq; ///< frame queue |
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} LibSpeexEncContext; |
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static av_cold void print_enc_params(AVCodecContext *avctx, |
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@@ -200,6 +200,7 @@ static av_cold int encode_init(AVCodecContext *avctx) |
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/* set encoding delay */ |
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speex_encoder_ctl(s->enc_state, SPEEX_GET_LOOKAHEAD, &avctx->delay); |
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ff_af_queue_init(avctx, &s->afq); |
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/* create header packet bytes from header struct */ |
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/* note: libspeex allocates the memory for header_data, which is freed |
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@@ -208,13 +209,22 @@ static av_cold int encode_init(AVCodecContext *avctx) |
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/* allocate extradata and coded_frame */ |
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avctx->extradata = av_malloc(header_size + FF_INPUT_BUFFER_PADDING_SIZE); |
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if (!avctx->extradata) { |
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speex_header_free(header_data); |
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speex_encoder_destroy(s->enc_state); |
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av_log(avctx, AV_LOG_ERROR, "memory allocation error\n"); |
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return AVERROR(ENOMEM); |
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} |
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#if FF_API_OLD_ENCODE_AUDIO |
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avctx->coded_frame = avcodec_alloc_frame(); |
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if (!avctx->extradata || !avctx->coded_frame) { |
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if (!avctx->coded_frame) { |
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av_freep(&avctx->extradata); |
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speex_header_free(header_data); |
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speex_encoder_destroy(s->enc_state); |
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av_log(avctx, AV_LOG_ERROR, "memory allocation error\n"); |
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return AVERROR(ENOMEM); |
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} |
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#endif |
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/* copy header packet to extradata */ |
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memcpy(avctx->extradata, header_data, header_size); |
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@@ -228,19 +238,21 @@ static av_cold int encode_init(AVCodecContext *avctx) |
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return 0; |
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} |
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static int encode_frame(AVCodecContext *avctx, uint8_t *frame, int buf_size, |
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void *data) |
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static int encode_frame(AVCodecContext *avctx, AVPacket *avpkt, |
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const AVFrame *frame, int *got_packet_ptr) |
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{ |
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LibSpeexEncContext *s = avctx->priv_data; |
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int16_t *samples = data; |
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int16_t *samples = frame ? (int16_t *)frame->data[0] : NULL; |
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int ret; |
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if (data) { |
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if (samples) { |
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/* encode Speex frame */ |
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if (avctx->channels == 2) |
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speex_encode_stereo_int(samples, s->header.frame_size, &s->bits); |
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speex_encode_int(s->enc_state, samples, &s->bits); |
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s->pkt_frame_count++; |
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s->pkt_sample_count += avctx->frame_size; |
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if ((ret = ff_af_queue_add(&s->afq, frame) < 0)) |
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return ret; |
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} else { |
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/* handle end-of-stream */ |
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if (!s->pkt_frame_count) |
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@@ -255,18 +267,20 @@ static int encode_frame(AVCodecContext *avctx, uint8_t *frame, int buf_size, |
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/* write output if all frames for the packet have been encoded */ |
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if (s->pkt_frame_count == s->frames_per_packet) { |
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s->pkt_frame_count = 0; |
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avctx->coded_frame->pts = ff_samples_to_time_base(avctx, s->next_pts - |
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avctx->delay); |
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s->next_pts += s->pkt_sample_count; |
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s->pkt_sample_count = 0; |
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if (buf_size > speex_bits_nbytes(&s->bits)) { |
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int ret = speex_bits_write(&s->bits, frame, buf_size); |
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speex_bits_reset(&s->bits); |
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if ((ret = ff_alloc_packet(avpkt, speex_bits_nbytes(&s->bits)))) { |
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av_log(avctx, AV_LOG_ERROR, "Error getting output packet\n"); |
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return ret; |
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} else { |
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av_log(avctx, AV_LOG_ERROR, "output buffer too small"); |
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return AVERROR(EINVAL); |
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} |
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ret = speex_bits_write(&s->bits, avpkt->data, avpkt->size); |
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speex_bits_reset(&s->bits); |
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/* Get the next frame pts/duration */ |
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ff_af_queue_remove(&s->afq, s->frames_per_packet * avctx->frame_size, |
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&avpkt->pts, &avpkt->duration); |
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avpkt->size = ret; |
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*got_packet_ptr = 1; |
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return 0; |
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} |
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return 0; |
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} |
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@@ -278,7 +292,10 @@ static av_cold int encode_close(AVCodecContext *avctx) |
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speex_bits_destroy(&s->bits); |
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speex_encoder_destroy(s->enc_state); |
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ff_af_queue_close(&s->afq); |
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#if FF_API_OLD_ENCODE_AUDIO |
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av_freep(&avctx->coded_frame); |
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#endif |
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av_freep(&avctx->extradata); |
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return 0; |
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@@ -312,7 +329,7 @@ AVCodec ff_libspeex_encoder = { |
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.id = CODEC_ID_SPEEX, |
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.priv_data_size = sizeof(LibSpeexEncContext), |
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.init = encode_init, |
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.encode = encode_frame, |
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.encode2 = encode_frame, |
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.close = encode_close, |
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.capabilities = CODEC_CAP_DELAY, |
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.sample_fmts = (const enum AVSampleFormat[]){ AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_NONE }, |
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