static int encode_write_frame(AVFrame *filt_frame, unsigned int stream_index, int *got_frame) {
int ret;
int got_frame_local;
AVPacket enc_pkt;
int (*enc_func)(AVCodecContext *, AVPacket *, const AVFrame *, int *) =
(ifmt_ctx->streams[stream_index]->codec->codec_type ==
AVMEDIA_TYPE_VIDEO) ? avcodec_encode_video2 : avcodec_encode_audio2;
if (!got_frame)
got_frame = &got_frame_local;
av_log(NULL, AV_LOG_INFO, "Encoding frame\n");
/* encode filtered frame */
enc_pkt.data = NULL;
enc_pkt.size = 0;
av_init_packet(&enc_pkt);
ret = enc_func(ofmt_ctx->streams[stream_index]->codec, &enc_pkt,
filt_frame, got_frame);
av_frame_free(&filt_frame);
if (ret < 0)
return ret;
if (!(*got_frame))
return 0;
/* prepare packet for muxing */
enc_pkt.stream_index = stream_index;
av_packet_rescale_ts(&enc_pkt,
ofmt_ctx->streams[stream_index]->codec->time_base,
ofmt_ctx->streams[stream_index]->time_base);
av_log(NULL, AV_LOG_DEBUG, "Muxing frame\n");
/* mux encoded frame */
ret = av_interleaved_write_frame(ofmt_ctx, &enc_pkt);
return ret;
}
/*
* Document-class: PG::BinaryEncoder::FromBase64 < PG::CompositeEncoder
*
* This is an encoder class for conversion of base64 encoded data
* to it's binary representation.
*
*/
static int
pg_bin_enc_from_base64(t_pg_coder *conv, VALUE value, char *out, VALUE *intermediate)
{
int strlen;
VALUE subint;
t_pg_composite_coder *this = (t_pg_composite_coder *)conv;
t_pg_coder_enc_func enc_func = pg_coder_enc_func(this->elem);
if(out){
/* Second encoder pass, if required */
strlen = enc_func(this->elem, value, out, intermediate);
strlen = base64_decode( out, out, strlen );
return strlen;
} else {
/* First encoder pass */
strlen = enc_func(this->elem, value, NULL, &subint);
if( strlen == -1 ){
/* Encoded string is returned in subint */
VALUE out_str;
strlen = RSTRING_LENINT(subint);
out_str = rb_str_new(NULL, BASE64_DECODED_SIZE(strlen));
strlen = base64_decode( RSTRING_PTR(out_str), RSTRING_PTR(subint), strlen);
rb_str_set_len( out_str, strlen );
*intermediate = out_str;
return -1;
} else {
*intermediate = subint;
return BASE64_DECODED_SIZE(strlen);
}
}
}
