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FS-7601 #resolve
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@@ -328,6 +328,7 @@ static switch_status_t switch_opus_init(switch_codec_t *codec, switch_codec_flag
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context->decoder_object = opus_decoder_create(codec->implementation->actual_samples_per_second,
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codec->implementation->number_of_channels, &err);
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switch_set_flag(codec, SWITCH_CODEC_FLAG_HAS_PLC);
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if (err != OPUS_OK) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Cannot create decoder: %s\n", opus_strerror(err));
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@@ -417,20 +418,23 @@ static switch_status_t switch_opus_decode(switch_codec_t *codec,
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frame_samples = *decoded_data_len / 2 / codec->implementation->number_of_channels;
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frame_size = frame_samples - (frame_samples % (codec->implementation->actual_samples_per_second / 400));
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/*FEC: shameless rip-off from mod_silk.c . OPUS only supports n+1 FEC , SILK is supposed to work with n+1, n+2*/
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if (*flag & SFF_PLC) {
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context->counter_plc_fec++;
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if (session) {
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jb = switch_core_session_get_jb(session, SWITCH_MEDIA_TYPE_AUDIO);
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}
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if (jb && codec->cur_frame) {
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found_frame = stfu_n_copy_next_frame(jb, (uint32_t)codec->cur_frame->timestamp, codec->cur_frame->seq, 1, &next_frame);
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if (found_frame) {
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samples = opus_decode(context->decoder_object, next_frame.data, next_frame.dlen, decoded_data, frame_size, 1); /* opus_decode() does PLC if there's no FEC in the packet*/
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samples = opus_decode(context->decoder_object, next_frame.data, next_frame.dlen, decoded_data, frame_size, 1);
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if (samples < 0 ) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Decoder Error (FEC): %s!\n", opus_strerror(samples));
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return SWITCH_STATUS_FALSE;
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} else {
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context->counter_plc_fec++;
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*flag &= ~SFF_PLC;
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*decoded_data_len = samples * 2 * codec->implementation->number_of_channels;
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return SWITCH_STATUS_SUCCESS;
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}
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@@ -438,13 +442,19 @@ static switch_status_t switch_opus_decode(switch_codec_t *codec,
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}
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}
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/* opus_decode() does PLC if there's no FEC in the packet*/
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samples = opus_decode(context->decoder_object, (*flag & SFF_PLC) ? NULL : encoded_data, encoded_data_len, decoded_data, frame_size, 0);
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if (*flag & SFF_PLC) {
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context->counter_plc_fec++;
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*flag &= ~SFF_PLC;
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}
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if (samples < 0) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Decoder Error: %s fs:%u plc:%d!\n", opus_strerror(samples), frame_size, !!(*flag & SFF_PLC));
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return SWITCH_STATUS_GENERR;
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}
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*decoded_data_len = samples * 2 * codec->implementation->number_of_channels;
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return SWITCH_STATUS_SUCCESS;
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@@ -204,6 +204,9 @@ static switch_status_t switch_silk_init(switch_codec_t *codec,
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}
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if (decoding) {
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switch_set_flag(codec, SWITCH_CODEC_FLAG_HAS_PLC);
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if (SKP_Silk_SDK_Get_Decoder_Size(&decSizeBytes)) {
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return SWITCH_STATUS_FALSE;
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}
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@@ -335,14 +338,19 @@ static switch_status_t switch_silk_decode(switch_codec_t *codec,
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*decoded_data_len = 0;
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if (lost_flag) {
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*flag &= ~SFF_PLC;
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if (session) {
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jb = switch_core_session_get_jb(session, SWITCH_MEDIA_TYPE_AUDIO);
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}
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if (jb && codec->cur_frame) {
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for (i = 1; i <= MAX_LBRR_DELAY; i++) {
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found_frame = stfu_n_copy_next_frame(jb, (uint32_t)codec->cur_frame->timestamp, codec->cur_frame->seq, (uint16_t)i, &next_frame);
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if (found_frame) {
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SKP_Silk_SDK_search_for_LBRR(next_frame.data, (const int)next_frame.dlen, i, (SKP_uint8*) &recbuff, &reclen);
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if (reclen) {
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encoded_data = &recbuff;
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encoded_data_len = reclen;
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