/*
* CINELERRA
* Copyright (C) 2004 Richard Baverstock
- *
+ *
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
- *
+ *
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
+ *
*/
#ifdef HAVE_DV
if(decoder) dv_decoder_free(decoder);
if(encoder) dv_encoder_free(encoder);
if(audio_encoder) dv_encoder_free(audio_encoder);
-
+
delete stream_lock;
delete decoder_lock;
delete video_position_lock;
-
+
delete[] video_buffer;
delete[] audio_buffer;
-
+
if(audio_sample_buffer)
{
for(int i = 0; i < asset->channels; i++)
delete[] audio_buffer;
delete[] video_buffer;
TRACE("FileDV::reset_parameters_derived: 30")
-
+
audio_buffer = 0;
video_buffer = 0;
-
+
if(stream) fclose(stream);
-
+
stream = 0;
-
+
audio_position = 0;
video_position = 0;
-
+
if(audio_sample_buffer)
{
for(int i = 0; i < asset->channels; i++)
audio_sample_buffer_len = 0;
audio_sample_buffer_end = 0;
audio_sample_buffer_maxsize = 0;
-
+
audio_frames_written = 0;
// output_size gets set in open_file, once we know if the frames are PAL or NTSC
// output and input are allocated at the same point.
output_size = 0;
-
+
UNTRACE
return 0;
}
TRACE("FileDV::open_file 20")
-
+
if (!(asset->height == 576 && asset->width == 720 && asset->frame_rate == 25) &&
!(asset->height == 480 && asset->width == 720 && (asset->frame_rate >= 29.96 && asset->frame_rate <= 29.98)))
{
{
eprintf(_("Suggestion: Proper frame rate for NTSC DV is 29.97 fps, not 30 fps\n"));
}
- return 1;
- }
+ return 1;
+ }
if (!(asset->channels == 2 && (asset->sample_rate == 48000 || asset->sample_rate == 44100)) &&
!((asset->channels == 4 || asset->channels == 2) && asset->sample_rate == 32000))
{
eprintf(_("Raw DV format does not support following audio configuration : %i channels at sample rate: %iHz\n"), asset->channels, asset->sample_rate);
return 1;
- }
-
+ }
+
if((stream = fopen(asset->path, "w+b")) == 0)
{
eprintf(_("Error while opening \"%s\" for writing. \n%m\n"), asset->path);
return 1;
}
-
+
// Create a new encoder
if(encoder) dv_encoder_free(encoder);
encoder = dv_encoder_new(0,0,0);
encoder->vlc_encode_passes = 3;
encoder->static_qno = 0;
encoder->force_dct = DV_DCT_AUTO;
-
+
if(audio_encoder) dv_encoder_free(audio_encoder);
audio_encoder = dv_encoder_new(0, 0, 0);
audio_encoder->vlc_encode_passes = 3;
audio_encoder->static_qno = 0;
audio_encoder->force_dct = DV_DCT_AUTO;
-
+
if(decoder) dv_decoder_free(decoder);
decoder = dv_decoder_new(0,0,0);
decoder->quality = DV_QUALITY_BEST;
-
+
isPAL = (asset->height == 576 ? 1 : 0);
encoder->isPAL = isPAL;
// need file size info to get length.
stat(asset->path, &info);
-
+
TRACE("FileDV::open_file 50")
// read the first frame so we can get the stream info from it
if(decoder) dv_decoder_free(decoder);
decoder = dv_decoder_new(0,0,0);
decoder->quality = DV_QUALITY_BEST;
-
+
if(dv_parse_header(decoder, temp) > -1 )
{
asset->interlace_mode = ILACE_MODE_BOTTOM_FIRST;
isPAL = dv_is_PAL(decoder);
-
+
output_size = (isPAL ? DV1394_PAL_FRAME_SIZE : DV1394_NTSC_FRAME_SIZE);
asset->video_length = info.st_size / output_size;
-
+
if(!asset->frame_rate)
asset->frame_rate = (isPAL ? 25 : 29.97);
strncpy(asset->vcodec, "dvc ", 4);
// allocate space for audio and video
video_buffer = new unsigned char[output_size + 4];
audio_buffer = new unsigned char[output_size + 4];
-
+
UNTRACE
return 0;
}
fread(&temp, 3, 1, t_stream);
fclose(t_stream);
-
+
if(temp[0] == 0x1f &&
temp[1] == 0x07 &&
temp[2] == 0x00)
fprintf(stderr, _("ERROR: Unable to allocate memory for audio_sample_buffer.\n"));
return 1;
}
-
+
for(int i = 0; i < asset->channels; i++)
{
audio_sample_buffer[i] = new int16_t[len * 2];
// copy buffer into audio_sample_buffer, straight out (no loop around)
for(int a = 0; a < len; a++)
{
- audio_sample_buffer[i][audio_sample_buffer_end + a] =
+ audio_sample_buffer[i][audio_sample_buffer_end + a] =
(buffer[i][a] * 32767);
}
if(i == (asset->channels - 1))
for(int a = 0; a < len - copy_size; a++)
audio_sample_buffer[i][a] = (buffer[i][a + copy_size] * 32767);
-
+
if(i == (asset->channels - 1))
audio_sample_buffer_end = len - copy_size;
}
}
-
+
audio_sample_buffer_len += len;
-
+
return 0;
}
if(audio_samples_copy(buffer, len) != 0)
{
eprintf(_("Unable to store sample"));
- return 1;
+ return 1;
}
video_position_lock->lock("FileDV::write_samples");
video_position_lock->unlock();
TRACE("FileDV::write_samples 220")
-
+
for(int i = 0; i < nFrames; i++)
{
stream_lock->lock("FileDV::write_samples 10");
stream_lock->unlock();
return 1;
}
-
+
if(fread(audio_buffer, output_size, 1, stream) != 1)
{
eprintf(_("Unable to read from audio buffer file\n"));
stream_lock->unlock();
return 1;
}
-
+
stream_lock->unlock();
TRACE("FileDV::write_samples 240")
int copy_size = audio_sample_buffer_maxsize - audio_sample_buffer_start - 1;
-
+
for(int a = 0; a < asset->channels; a++)
{
memcpy(tmp_buf[a], audio_sample_buffer[a] + audio_sample_buffer_start,
asset->channels, asset->sample_rate, audio_buffer) < 0)
{
eprintf(_("ERROR: unable to encode audio frame %d\n"), audio_frames_written);
-
+
}
delete[] tmp_buf2;
- }
-
+ }
+
TRACE("FileDV::write_samples 270")
stream_lock->lock("FileDV::write_samples 20");
stream_lock->unlock();
return 1;
}
-
+
if(fwrite(audio_buffer, output_size, 1, stream) != 1)
{
eprintf(_("Unable to write audio to audio buffer\n"));
}
stream_lock->unlock();
-
+
audio_frames_written++;
audio_sample_buffer_len -= samples;
audio_sample_buffer_start += samples;
unsigned char **row_pointers = temp_frame->get_rows();
for(int i = 0; i < asset->height; i++)
cmodel_buf[i] = data + asset->width * 2 * i;
-
+
BC_CModels::transfer(cmodel_buf,
row_pointers,
cmodel_buf[0],
eprintf(_("Unable to write video data to video buffer"));
}
stream_lock->unlock();
-
+
video_position_lock->lock();
video_position++;
video_position_lock->unlock();
}
-
+
return 0;
}
video_position++;
buffer->set_compressed_size(result);
-
+
return result != 0;
}
int result = 0;
int frame_count = get_audio_frame(audio_position);
int offset = get_audio_offset(audio_position);
-
+
stream_lock->lock("FileDV::read_samples");
if(stream == 0)
{
while(count < len)
{
stream_lock->lock();
-
+
if(fseeko(stream, (off_t) frame_count * output_size, SEEK_SET) != 0)
{
stream_lock->unlock();
result = 1;
break;
}
-
+
if(fread(audio_buffer, output_size, 1, stream) < 1)
{
stream_lock->unlock();
}
stream_lock->unlock();
-
+
frame_count++;
-
+
decoder_lock->lock("FileDV::read_samples");
-
+
if(dv_decode_full_audio(decoder, audio_buffer, out_buffer) < 0)
{
eprintf(_("Error decoding audio frame %d\n"), frame_count - 1);
offset = 0;
}
-
+
for(int i = 0; i < channels; i++)
delete[] out_buffer[i];
delete[] out_buffer;
audio_position += len;
-
+
return result;
}
fread(video_buffer, output_size, 1, stream);
stream_lock->unlock();
video_position++;
-
+
TRACE("FileDV::read_frame 20")
for(int i = 0; i < asset->height; i++)
temp_pointers[i] = data + asset->width * 2 * i;
-
-
+
+
TRACE("FileDV::read_frame 69")
decoder_lock->lock("FileDV::read_frame 30");
0,
asset->width,
asset->width);
-
+
//for(int i = 0; i < asset->height; i++)
// delete[] temp_pointers[i];
delete[] temp_pointers;
delete[] data;
-
+
break;
}
UNTRACE
- return 0;
+ return 0;
}
int FileDV::colormodel_supported(int colormodel)
int FileDV::get_audio_offset(int64_t pos)
{
int frame = get_audio_frame(pos);
-
+
// Samples needed from last frame
return pos - frame * asset->sample_rate / asset->frame_rate;
}
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