static int get_audio_flags(AVCodecContext *enc){ int flags = (enc->bits_per_coded_sample == 16) ? FLV_SAMPLESSIZE_16BIT : FLV_SAMPLESSIZE_8BIT; if (enc->codec_id == CODEC_ID_AAC) // specs force these parameters return FLV_CODECID_AAC | FLV_SAMPLERATE_44100HZ | FLV_SAMPLESSIZE_16BIT | FLV_STEREO; else if (enc->codec_id == CODEC_ID_SPEEX) { if (enc->sample_rate != 16000) { av_log(enc, AV_LOG_ERROR, "flv only supports wideband (16kHz) Speex audio\n"); return -1; } if (enc->channels != 1) { av_log(enc, AV_LOG_ERROR, "flv only supports mono Speex audio\n"); return -1; } if (enc->frame_size / 320 > 8) { av_log(enc, AV_LOG_WARNING, "Warning: Speex stream has more than " "8 frames per packet. Adobe Flash " "Player cannot handle this!\n"); } return FLV_CODECID_SPEEX | FLV_SAMPLERATE_11025HZ | FLV_SAMPLESSIZE_16BIT; } else { switch (enc->sample_rate) { case 44100: flags |= FLV_SAMPLERATE_44100HZ; break; case 22050: flags |= FLV_SAMPLERATE_22050HZ; break; case 11025: flags |= FLV_SAMPLERATE_11025HZ; break; case 8000: //nellymoser only case 5512: //not mp3 if(enc->codec_id != CODEC_ID_MP3){ flags |= FLV_SAMPLERATE_SPECIAL; break; } default: av_log(enc, AV_LOG_ERROR, "flv does not support that sample rate, choose from (44100, 22050, 11025).\n"); return -1; } } if (enc->channels > 1) { flags |= FLV_STEREO; } switch(enc->codec_id){ case CODEC_ID_MP3: flags |= FLV_CODECID_MP3 | FLV_SAMPLESSIZE_16BIT; break; case CODEC_ID_PCM_U8: flags |= FLV_CODECID_PCM | FLV_SAMPLESSIZE_8BIT; break; case CODEC_ID_PCM_S16BE: flags |= FLV_CODECID_PCM | FLV_SAMPLESSIZE_16BIT; break; case CODEC_ID_PCM_S16LE: flags |= FLV_CODECID_PCM_LE | FLV_SAMPLESSIZE_16BIT; break; case CODEC_ID_ADPCM_SWF: flags |= FLV_CODECID_ADPCM | FLV_SAMPLESSIZE_16BIT; break; case CODEC_ID_NELLYMOSER: if (enc->sample_rate == 8000) { flags |= FLV_CODECID_NELLYMOSER_8KHZ_MONO | FLV_SAMPLESSIZE_16BIT; } else { flags |= FLV_CODECID_NELLYMOSER | FLV_SAMPLESSIZE_16BIT; } break; case 0: flags |= enc->codec_tag<<4; break; default: av_log(enc, AV_LOG_ERROR, "codec not compatible with flv\n"); return -1; } return flags; }
static int get_audio_flags(AVCodecContext *enc){ int flags = (enc->bits_per_coded_sample == 16) ? FLV_SAMPLESSIZE_16BIT : FLV_SAMPLESSIZE_8BIT; if (enc->codec_id == CODEC_ID_AAC)  