| 454 | } |
| 455 | |
| 456 | static int libopus_encode(AVCodecContext *avctx, AVPacket *avpkt, |
| 457 | const AVFrame *frame, int *got_packet_ptr) |
| 458 | { |
| 459 | LibopusEncContext *opus = avctx->priv_data; |
| 460 | const int bytes_per_sample = av_get_bytes_per_sample(avctx->sample_fmt); |
| 461 | const int channels = avctx->ch_layout.nb_channels; |
| 462 | const int sample_size = channels * bytes_per_sample; |
| 463 | const uint8_t *audio; |
| 464 | int ret; |
| 465 | int discard_padding; |
| 466 | |
| 467 | if (frame) { |
| 468 | ret = ff_af_queue_add(&opus->afq, frame); |
| 469 | if (ret < 0) |
| 470 | return ret; |
| 471 | if (opus->encoder_channel_map != NULL) { |
| 472 | audio = opus->samples; |
| 473 | libopus_copy_samples_with_channel_map( |
| 474 | opus->samples, frame->data[0], opus->encoder_channel_map, |
| 475 | channels, frame->nb_samples, bytes_per_sample); |
| 476 | } else if (frame->nb_samples < opus->opts.packet_size) { |
| 477 | audio = opus->samples; |
| 478 | memcpy(opus->samples, frame->data[0], frame->nb_samples * sample_size); |
| 479 | } else |
| 480 | audio = frame->data[0]; |
| 481 | } else { |
| 482 | if (!opus->afq.remaining_samples || (!opus->afq.frame_alloc && !opus->afq.frame_count)) |
| 483 | return 0; |
| 484 | audio = opus->samples; |
| 485 | memset(opus->samples, 0, opus->opts.packet_size * sample_size); |
| 486 | } |
| 487 | |
| 488 | /* Maximum packet size taken from opusenc in opus-tools. 120ms packets |
| 489 | * consist of 6 frames in one packet. The maximum frame size is 1275 |
| 490 | * bytes along with the largest possible packet header of 7 bytes. */ |
| 491 | if ((ret = ff_alloc_packet(avctx, avpkt, (1275 * 6 + 7) * opus->stream_count)) < 0) |
| 492 | return ret; |
| 493 | |
| 494 | if (avctx->sample_fmt == AV_SAMPLE_FMT_FLT) |
| 495 | ret = opus_multistream_encode_float(opus->enc, (const float *)audio, |
| 496 | opus->opts.packet_size, |
| 497 | avpkt->data, avpkt->size); |
| 498 | else |
| 499 | ret = opus_multistream_encode(opus->enc, (const opus_int16 *)audio, |
| 500 | opus->opts.packet_size, |
| 501 | avpkt->data, avpkt->size); |
| 502 | |
| 503 | if (ret < 0) { |
| 504 | av_log(avctx, AV_LOG_ERROR, |
| 505 | "Error encoding frame: %s\n", opus_strerror(ret)); |
| 506 | return ff_opus_error_to_averror(ret); |
| 507 | } |
| 508 | |
| 509 | av_shrink_packet(avpkt, ret); |
| 510 | |
| 511 | ff_af_queue_remove(&opus->afq, opus->opts.packet_size, |
| 512 | &avpkt->pts, &avpkt->duration); |
| 513 |
nothing calls this directly
no test coverage detected