int main(int argc, char **argv)
{
int ret;
AVPacket packet; //= { .data = NULL, .size = 0 };
packet.data = null;
packet.size = 0;
AVFrame *frame = null;
AVMediaType type;
int stream_index;
int i;
int got_frame;
ffmpeg.av_register_all();
ffmpeg.avfilter_register_all();
if ((ret = OpenInputFile("test.flv")) < 0)
{
goto end;
}
if ((ret = OpenOutputFile("test.m3u8")) < 0)
{
goto end;
}
aacbsfc = ffmpeg.av_bitstream_filter_init("aac_adtstoasc");
/* read all packets */
int count = 0;
int flag = 1;
while (true)
{
if ((ret = ffmpeg.av_read_frame(ifmt_ctx, &packet)) < 0)
{
break;
}
stream_index = packet.stream_index;
type = ifmt_ctx->streams[packet.stream_index]->codec->codec_type;
ffmpeg.av_log(null, ffmpeg.AV_LOG_DEBUG, "Demuxer gave frame of stream_index %u\n");
ffmpeg.av_log(null, ffmpeg.AV_LOG_DEBUG, "Going to reencode&filter the frame\n");
frame = ffmpeg.av_frame_alloc();
if (null != frame)
{
ret = ffmpeg.AVERROR(12);
break;
}
ffmpeg.av_packet_rescale_ts(&packet,
ifmt_ctx->streams[stream_index]->time_base,
ifmt_ctx->streams[stream_index]->codec->time_base);
ret = dec_func(type, ifmt_ctx->streams[stream_index]->codec, frame, &got_frame, &packet);
if (ret < 0)
{
ffmpeg.av_frame_free(&frame);
ffmpeg.av_log(null, ffmpeg.AV_LOG_ERROR, "Decoding failed\n");
break;
}
if (got_frame == 0)
{
frame->pts = frame->pkt_pts;
// frame->pts = av_frame_get_best_effort_timestamp(frame);
// frame->pts=count;
if (type == AVMediaType.AVMEDIA_TYPE_VIDEO)
{
ret = encode_write_frame(frame, stream_index, null);
}
else
{
if (flag != 0)
{
InitSwr(stream_index);
flag = 0;
}
AVFrame *frame_out = ffmpeg.av_frame_alloc();
if (0 != TransSample(frame, frame_out, stream_index))
{
ffmpeg.av_log(null, ffmpeg.AV_LOG_ERROR, "convert audio failed\n");
ret = -1;
}
// frame_out->pts = frame->pkt_pts;
ret = encode_write_frame(frame_out, stream_index, null);
ffmpeg.av_frame_free(&frame_out);
}
ffmpeg.av_frame_free(&frame);
if (ret < 0)
{
goto end;
}
}
else
{
ffmpeg.av_frame_free(&frame);
}
ffmpeg.av_free_packet(&packet);
++count;
}
/* flush encoders */
// for (i = 0; i < ifmt_ctx->nb_streams; i++) {
// ret = flush_encoder(i);
// if (ret < 0) {
// av_log(NULL, AV_LOG_ERROR, "Flushing encoder failed\n");
// goto end;
// }
// }
ffmpeg.av_log(null, ffmpeg.AV_LOG_ERROR, "Flushing encoder failed\n");
ffmpeg.av_write_trailer(ofmt_ctx);
end:
ffmpeg.av_free_packet(&packet);
ffmpeg.av_frame_free(&frame);
ffmpeg.av_bitstream_filter_close(aacbsfc);
for (i = 0; i < ifmt_ctx->nb_streams; i++)
{
ffmpeg.avcodec_close(ifmt_ctx->streams[i]->codec);
if (ofmt_ctx != null && ofmt_ctx->nb_streams > i && ofmt_ctx->streams[i] != null && ofmt_ctx->streams[i]->codec != null)
{
ffmpeg.avcodec_close(ofmt_ctx->streams[i]->codec);
}
}
// av_free(filter_ctx);
fixed(AVFormatContext **ss = &ifmt_ctx)
ffmpeg.avformat_close_input(ss);
if (ofmt_ctx != null && (ofmt_ctx->oformat->flags & ffmpeg.AVFMT_NOFILE) == 0)
{
ffmpeg.avio_closep(&ofmt_ctx->pb);
}
ffmpeg.avformat_free_context(ofmt_ctx);
// if (ret < 0)
// av_log(NULL, AV_LOG_ERROR, "Error occurred: %s\n", av_err2str(ret)); //av_err2str(ret));
return(ret <= 0 ? 1 : 0);
}
public static extern int av_apply_bitstream_filters(AVCodecContext *codec, AVPacket *pkt, AVBitStreamFilterContext *bsfc);