/**
* @brief Receive decoded audio frame.
*
* @param av Handler.
* @param frame_size The size of dest in frames/samples (one frame/sample is 16 bits or 2 bytes
* and corresponds to one sample of audio.)
* @param dest Destination of the raw audio (16 bit signed pcm with AUDIO_CHANNELS channels).
* Make sure it has enough space for frame_size frames/samples.
* @return int
* @retval >=0 Size of received data in frames/samples.
* @retval ToxAvError On error.
*/
inline__ int toxav_recv_audio ( ToxAv *av, int32_t call_index, int frame_size, int16_t *dest )
{
if ( !dest ) return ErrorInternal;
if (cii(call_index, av->msi_session) || !av->calls[call_index].call_active) {
LOGGER_WARNING("Action on inactive call: %d", call_index);
return ErrorNoCall;
}
CallSpecific *call = &av->calls[call_index];
uint8_t packet [RTP_PAYLOAD_SIZE];
int recved_size = toxav_recv_rtp_payload(av, call_index, TypeAudio, packet);
if ( recved_size == ErrorAudioPacketLost ) {
int dec_size = opus_decode(call->cs->audio_decoder, NULL, 0, dest, frame_size, 1);
if ( dec_size < 0 ) {
LOGGER_WARNING("Decoding error: %s", opus_strerror(dec_size));
return ErrorInternal;
} else return dec_size;
} else if ( recved_size ) {
int dec_size = opus_decode(call->cs->audio_decoder, packet, recved_size, dest, frame_size, 0);
if ( dec_size < 0 ) {
LOGGER_WARNING("Decoding error: %s", opus_strerror(dec_size));
return ErrorInternal;
} else return dec_size;
} else {
return 0; /* Nothing received */
}
}
/**
* @brief Receive decoded video packet.
*
* @param av Handler.
* @param output Storage.
* @return int
* @retval 0 Success.
* @retval ToxAvError On Error.
*/
inline__ int toxav_recv_video ( ToxAv *av, int32_t call_index, vpx_image_t **output)
{
if ( !output ) return ErrorInternal;
uint8_t packet [RTP_PAYLOAD_SIZE];
int recved_size = 0;
int rc;
CallSpecific *call = &av->calls[call_index];
do {
recved_size = toxav_recv_rtp_payload(av, call_index, TypeVideo, packet);
if (recved_size > 0 && ( rc = vpx_codec_decode(&call->cs->v_decoder, packet, recved_size, NULL, 0) ) != VPX_CODEC_OK) {
/*fprintf(stderr, "Error decoding video: %s\n", vpx_codec_err_to_string(rc));*/
return ErrorInternal;
}
} while (recved_size > 0);
vpx_codec_iter_t iter = NULL;
vpx_image_t *img;
img = vpx_codec_get_frame(&call->cs->v_decoder, &iter);
*output = img;
return 0;
}
/**
* @brief Receive decoded video packet.
*
* @param av Handler.
* @param output Storage.
* @return int
* @retval 0 Success.
* @retval ToxAvError On Error.
*/
inline__ int toxav_recv_video ( ToxAv *av, vpx_image_t **output)
{
if ( !output ) return ErrorInternal;
uint8_t packet [RTP_PAYLOAD_SIZE];
int recved_size = 0;
int error;
do {
recved_size = toxav_recv_rtp_payload(av, TypeVideo, packet);
if (recved_size > 0 && ( error = vpx_codec_decode(&av->cs->v_decoder, packet, recved_size, NULL, 0) ) != VPX_CODEC_OK)
fprintf(stderr, "Error decoding: %s\n", vpx_codec_err_to_string(error));
} while (recved_size > 0);
vpx_codec_iter_t iter = NULL;
vpx_image_t *img;
img = vpx_codec_get_frame(&av->cs->v_decoder, &iter);
*output = img;
return 0;
/* Yeah, i set output to be NULL if nothing received
*/
}
/**
* @brief Receive decoded audio frame.
*
* @param av Handler.
* @param frame_size The size of dest in frames/samples (one frame/sample is 16 bits or 2 bytes
* and corresponds to one sample of audio.)
* @param dest Destination of the raw audio (16 bit signed pcm with AUDIO_CHANNELS channels).
* Make sure it has enough space for frame_size frames/samples.
* @return int
* @retval >=0 Size of received data in frames/samples.
* @retval ToxAvError On error.
*/
inline__ int toxav_recv_audio ( ToxAv *av, int frame_size, int16_t *dest )
{
if ( !dest ) return ErrorInternal;
uint8_t packet [RTP_PAYLOAD_SIZE];
int recved_size = toxav_recv_rtp_payload(av, TypeAudio, packet);
if ( recved_size == ErrorAudioPacketLost ) {
return opus_decode(av->cs->audio_decoder, NULL, 0, dest, frame_size, 1);
} else if ( recved_size ) {
return opus_decode(av->cs->audio_decoder, packet, recved_size, dest, frame_size, 0);
} else {
return 0; /* Nothing received */
}
}
/**
* @brief Receive decoded video packet.
*
* @param av Handler.
* @param output Storage.
* @return int
* @retval 0 Success.
* @retval ToxAvError On Error.
*/
inline__ int toxav_recv_video ( ToxAv *av, int32_t call_index, vpx_image_t **output)
{
if ( !output ) return ErrorInternal;
if (cii(call_index, av->msi_session) || !av->calls[call_index].call_active) {
LOGGER_WARNING("Action on inactive call: %d", call_index);
return ErrorNoCall;
}
uint8_t packet [RTP_PAYLOAD_SIZE];
CallSpecific *call = &av->calls[call_index];
int recved_size;
while ((recved_size = toxav_recv_rtp_payload(av, call_index, TypeVideo, packet)) > 0) {
if (recved_size < VIDEOFRAME_HEADER_SIZE) {
continue;
}
uint8_t i = packet[0] - call->frame_id;
if (i == 0) {
/* piece of current frame */
} else if (i > 0 && i < 128) {
/* recieved a piece of a frame ahead, flush current frame and start reading this new frame */
int rc = vpx_codec_decode(&call->cs->v_decoder, call->frame_buf, call->frame_limit, NULL, 0);
call->frame_id = packet[0];
memset(call->frame_buf, 0, call->frame_limit);
call->frame_limit = 0;
if (rc != VPX_CODEC_OK) {
LOGGER_ERROR("Error decoding video: %u %s\n", i, vpx_codec_err_to_string(rc));
}
} else {
/* old packet, dont read */
LOGGER_DEBUG("Old packet: %u\n", i);
continue;
}
if (packet[1] > (MAX_VIDEOFRAME_SIZE - VIDEOFRAME_PIECE_SIZE + 1) /
VIDEOFRAME_PIECE_SIZE) { //TODO, fix this check? not sure
/* packet out of buffer range */
continue;
}
LOGGER_DEBUG("Video Packet: %u %u\n", packet[0], packet[1]);
memcpy(call->frame_buf + packet[1] * VIDEOFRAME_PIECE_SIZE, packet + VIDEOFRAME_HEADER_SIZE,
recved_size - VIDEOFRAME_HEADER_SIZE);
uint32_t limit = packet[1] * VIDEOFRAME_PIECE_SIZE + recved_size - VIDEOFRAME_HEADER_SIZE;
if (limit > call->frame_limit) {
call->frame_limit = limit;
LOGGER_DEBUG("Limit: %u\n", call->frame_limit);
}
}
vpx_codec_iter_t iter = NULL;
vpx_image_t *img;
img = vpx_codec_get_frame(&call->cs->v_decoder, &iter);
*output = img;
return 0;
}