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-rw-r--r--src/AudioEncoder.cc29
-rw-r--r--src/iso11172-1.h22
-rw-r--r--src/liblame_wrapper.cc40
-rw-r--r--src/liblame_wrapper.h5
-rw-r--r--src/mov_encoder.cc18
-rw-r--r--src/multiplexer.cc64
6 files changed, 129 insertions, 49 deletions
diff --git a/src/AudioEncoder.cc b/src/AudioEncoder.cc
deleted file mode 100644
index 237dee0..0000000
--- a/src/AudioEncoder.cc
+++ /dev/null
@@ -1,29 +0,0 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/***************************************************************************
- * AudioEncoder.cc
- *
- * Sat Sep 17 18:33:47 CEST 2005
- * Copyright 2005 Bent Bisballe Nyeng
- * deva@aasimon.org
- ****************************************************************************/
-
-/*
- * This file is part of MIaV.
- *
- * MIaV 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.
- *
- * MIaV 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 MIaV; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
- */
-#include "config.h"
-#include "AudioEncoder.h"
-
diff --git a/src/iso11172-1.h b/src/iso11172-1.h
index e01b45b..6dda687 100644
--- a/src/iso11172-1.h
+++ b/src/iso11172-1.h
@@ -54,6 +54,28 @@ namespace ISO11172_1 {
unsigned long long int padding:4;
} pack_header;
+ typedef struct {
+ unsigned long long int reserved_byte:8;
+ unsigned long long int video_bound:5;
+ unsigned long long int marker_bit3:1;
+ unsigned long long int system_video_clock_flag:1;
+ unsigned long long int system_audio_clock_flag:1;
+ unsigned long long int CSPS_flag:1;
+ unsigned long long int fixed_flag:1;
+ unsigned long long int audio_bound:6;
+ unsigned long long int marker_bit2:1;
+ unsigned long long int rate_bound:22;
+ unsigned long long int marker_bit1:1;
+ unsigned long long int header_length:16;
+ } system_header;
+
+ typedef struct {
+ unsigned long int STD_buffer_size_bound:13;
+ unsigned long int STD_buffer_bound_scale:1;
+ unsigned long int market_bits:2;
+ unsigned long int stream_id:8;
+ } stream_description;
+
////////////////////////////////////////////////////
// Constants
////////////////////////////////////////////////////
diff --git a/src/liblame_wrapper.cc b/src/liblame_wrapper.cc
index 08765b7..87b2f11 100644
--- a/src/liblame_wrapper.cc
+++ b/src/liblame_wrapper.cc
@@ -42,8 +42,9 @@ LibLAMEWrapper::LibLAMEWrapper(Info *i)
lame_set_out_samplerate(gfp, OUTPUT_SAMPLE_RATE);
lame_set_num_channels(gfp, CHANNELS);
- lame_set_num_samples(gfp, 1152);
+ // lame_set_num_samples(gfp, 1152);
// lame_set_num_samples(gfp, SAMPLES);
+ // lame_set_num_samples(gfp, 0);
lame_set_quality(gfp, config->readInt("mp3_quality"));
lame_set_mode(gfp, STEREO);
@@ -87,12 +88,31 @@ LibLAMEWrapper::LibLAMEWrapper(Info *i)
LibLAMEWrapper::~LibLAMEWrapper()
{
- lame_close(gfp);
-
delete audio_buffer[0];
delete audio_buffer[1];
}
+Frame *LibLAMEWrapper::close(Frame *oldframe)
+{
+ Frame *frame = new Frame(NULL, oldframe->size + 7200);
+ frame->number = oldframe->number;
+
+ memcpy(frame->data, oldframe->data, oldframe->size);
+
+ int flush;
+
+ flush = lame_encode_finish(gfp, frame->data + oldframe->size, 7200);
+
+ frame->size = oldframe->size + flush;
+
+ calc_bitrate += flush;
+ frame->bitrate = (unsigned int)((double)calc_bitrate / (double)(frame_number)) * 25;
+
+ delete oldframe;
+
+ return frame;
+}
+
Frame *LibLAMEWrapper::encode(Frame *dvframe)
{
@@ -193,12 +213,19 @@ Frame *LibLAMEWrapper::encode(Frame *dvframe)
*
* return code = number of bytes output to mp3buf. Can be 0
*/
+
+ int flush_sz = 0;
+
+ /*
+ flush_sz = lame_encode_flush_nogap(gfp, // global context handle
+ mp3buf + val, // pointer to encoded MP3 stream
+ mp3buf_size - val); // number of valid octets in this stream
+ */
- int flush_sz = lame_encode_flush_nogap(gfp, // global context handle
- mp3buf + val, // pointer to encoded MP3 stream
- mp3buf_size - val); // number of valid octets in this stream
+ info->info("VAL: %d - FLUSH_SZ: %d - TOTAL: %d", val, flush_sz, (val + flush_sz));
audio_frame->size = val + flush_sz;
+
/*
int bitrate_kbps[14];
@@ -237,5 +264,6 @@ Frame *LibLAMEWrapper::encode(Frame *dvframe)
audio_frame->bitrate,
(float)(config->readInt("mp3_bitrate") * 1000)/(float)(audio_frame->bitrate));
*/
+
return audio_frame;
}
diff --git a/src/liblame_wrapper.h b/src/liblame_wrapper.h
index b2851bf..cf8e688 100644
--- a/src/liblame_wrapper.h
+++ b/src/liblame_wrapper.h
@@ -43,8 +43,7 @@
#define CHANNELS 2
#define INPUT_SAMPLE_RATE 48000
#define OUTPUT_SAMPLE_RATE 48000
-#define SAMPLES AUDIO_BUFFER_SIZE
-//OUTPUT_SAMPLE_RATE / 25
+#define SAMPLES OUTPUT_SAMPLE_RATE / 25
class LibLAMEWrapper {
public:
@@ -53,6 +52,8 @@ public:
Frame *encode(Frame *dvframe);
+ Frame *close(Frame *dvframe);
+
private:
unsigned long long calc_bitrate;
int frame_number;
diff --git a/src/mov_encoder.cc b/src/mov_encoder.cc
index 4e8189c..118a338 100644
--- a/src/mov_encoder.cc
+++ b/src/mov_encoder.cc
@@ -97,13 +97,14 @@ void MovEncoder::thread_main()
LibFAMEWrapper fame(info);
// LibLAMEWrapper lame(info);
- while(running) {
- sem_wait(input_sem);
-
// Make a new instance for every frame sequence (usually 5) to ensure no
// frame dependencies are broken when running multithreaded.
LibLAMEWrapper lame(info);
+ while(running) {
+ sem_wait(input_sem);
+
+
// Lock inout mutex
pthread_mutex_lock(input_mutex);
item = inputqueue->front();
@@ -119,16 +120,19 @@ void MovEncoder::thread_main()
in_frame = item->at(cnt);
// Encode video
- out_v_frame = new Frame(in_frame->data, in_frame->size);
- out_v_frame->number = in_frame->number;
+ //out_v_frame = new Frame(in_frame->data, in_frame->size);
+ //out_v_frame->number = in_frame->number;
out_v_frame = fame.encode(in_frame);
out_v_frame->number = in_frame->number;
// Encode audio
- out_a_frame = new Frame(in_frame->data, in_frame->size);
- out_a_frame->number = in_frame->number;
+ //out_a_frame = new Frame(in_frame->data, in_frame->size);
+ //out_a_frame->number = in_frame->number;
out_a_frame = lame.encode(in_frame);
out_a_frame->number = in_frame->number;
+
+ // Last frame - we need to close LAME
+ // if(cnt == item->size() - 1) out_a_frame = lame.close(out_a_frame);
delete in_frame;
diff --git a/src/multiplexer.cc b/src/multiplexer.cc
index d479627..a94c150 100644
--- a/src/multiplexer.cc
+++ b/src/multiplexer.cc
@@ -187,7 +187,7 @@ bool Multiplexer::packet(StreamType type)
if(framesize != PACKET_SIZE) return false;
- written[type] += (double)PACKET_SIZE / (double)frame[type]->bitrate;
+ written[type] += (double)PACKET_SIZE / (double)frame[type]->size;//bitrate;
return true;
}
@@ -235,10 +235,57 @@ bool Multiplexer::packet()
void Multiplexer::system_header()
{
info->info("\t\t[System Header]");
-
+
// system_header_start_code (32 bits)
file->Write((void*)ISO11172_1::system_header_start_code, SIZEOF(ISO11172_1::system_header_start_code));
+
+ ISO11172_1::system_header header;
+ unsigned long int *h_u = (unsigned long int *)&header;
+ unsigned long int *h_l = (unsigned long int *)(((char*)&header) + sizeof(unsigned int));
+
+ header.marker_bit1 = header.marker_bit2 = header.marker_bit3 = 1;
+
+ header.header_length = 8 - 2 + (NUM_TYPES * 3);
+ // (sizeof(header) - sizeof(header.header_length)) +
+ // NUM_TYPES * sizeof(ISO11172_1::stream_description);
+ header.rate_bound = 3521; // FIXME: Taken from the example!
+ header.audio_bound = 1; // Only 1 audio stream
+ header.fixed_flag = 1; // Fixed bitrate (0 indicates vbr)
+ header.CSPS_flag = 1; // Standarts compliant? (yes: see lame_set_strict_ISO in liblame_wrapper.cc)
+ header.system_audio_clock_flag = 1; // FIXME: What excactly is this??
+ header.system_video_clock_flag = 1; // FIXME: What excactly is this??
+ header.video_bound = 1; // Only 1 video stream
+ header.reserved_byte = 0xFF; // Must be 0xFF
+
+ *h_u = htonl(*h_u);
+ *h_l = htonl(*h_l);
+
+ file->Write((char*)h_l, sizeof(*h_l));
+ file->Write((char*)h_u, sizeof(*h_u));
+ unsigned int *d;
+
+ ISO11172_1::stream_description audio_stream_description;
+ audio_stream_description.stream_id = 0xC0;
+ audio_stream_description.market_bits = 0x3;
+ audio_stream_description.STD_buffer_bound_scale = 0; // Must be 0 for audio streams
+ audio_stream_description.STD_buffer_size_bound = 32; // Buffer must be 32 * 128 bytes
+
+ d = (unsigned int*)&audio_stream_description;
+ *d = htonl(*d);
+ file->Write((char*)d, sizeof(*d));
+
+ ISO11172_1::stream_description video_stream_description;
+ video_stream_description.stream_id = 0xE3;
+ video_stream_description.market_bits = 0x3;
+ video_stream_description.STD_buffer_bound_scale = 1; // Must be 1 for video streams
+ video_stream_description.STD_buffer_size_bound = 46; // Buffer must be 32 * 1024 bytes
+
+ d = (unsigned int*)&video_stream_description;
+ *d = htonl(*d);
+ file->Write((char*)d, sizeof(*d));
+
+ /* // old code!
// header_length (16 bits)
char system_header_length[] = "\x00\x0C";
file->Write(system_header_length, SIZEOF(system_header_length));
@@ -265,7 +312,9 @@ void Multiplexer::system_header()
// reserved_byte (8 bit)
char reserved_byte[] = "\xFF";
file->Write(reserved_byte, SIZEOF(reserved_byte));
+ */
+ /*
{ // Audio
// stream_id (8 bit)
char stream_id[] = "\xC0";
@@ -289,6 +338,7 @@ void Multiplexer::system_header()
char reserved_byte[] = "\xE0\x2E";
file->Write(reserved_byte, SIZEOF(reserved_byte));
}
+ */
}
#define MASK3 0x7
@@ -355,10 +405,10 @@ bool Multiplexer::pack()
);
*/
unsigned int *hton_header_u = (unsigned int *)&header;
- unsigned int *hton_header_l = (unsigned int *)((char*)&header + sizeof(unsigned int));
+ unsigned int *hton_header_l = (unsigned int *)(((char*)&header) + sizeof(unsigned int));
- *hton_header_u = htonl(*hton_header_u);
*hton_header_l = htonl(*hton_header_l);
+ *hton_header_u = htonl(*hton_header_u);
file->Write((char*)hton_header_u, sizeof(*hton_header_u));
file->Write((char*)hton_header_l, sizeof(*hton_header_l));
@@ -401,8 +451,12 @@ void Multiplexer::multiplex()
{
#ifdef BYPASS
+ int frmsz;
char buf[1024];
- while(*running) file->Write(buf, read_stream(buf, sizeof(buf), BYPASS));
+ do {
+ frmsz = read_stream(buf, sizeof(buf), BYPASS);
+ file->Write(buf, frmsz);
+ } while(frmsz == sizeof(buf));
return;
#else/*BYPASS*/
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-25 06:55:08 +0000