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-rw-r--r--src/libfame_wrapper.cc12
-rw-r--r--src/liblame_wrapper.cc78
-rw-r--r--src/liblame_wrapper.h12
-rw-r--r--src/mov_encoder.cc19
-rw-r--r--src/mov_encoder.h7
-rw-r--r--src/mov_encoder_writer.cc133
-rw-r--r--src/mov_encoder_writer.h7
7 files changed, 231 insertions, 37 deletions
diff --git a/src/libfame_wrapper.cc b/src/libfame_wrapper.cc
index ab60b36..64eb9f5 100644
--- a/src/libfame_wrapper.cc
+++ b/src/libfame_wrapper.cc
@@ -31,6 +31,9 @@
/*
* $Log$
+ * Revision 1.2 2005/07/05 23:15:16 deva
+ * *** empty log message ***
+ *
* Revision 1.1 2005/07/02 11:39:51 deva
* Added some audiocode.
* Moved libfame code out of mov_encoder
@@ -68,17 +71,8 @@ LibFAMEWrapper::LibFAMEWrapper(Info *i)
/////////LIBFAME STUFF///////////
// Allocate the output buffer.
-
// fame_buffer = new unsigned char [FAME_BUFFER_SIZE];
- /*
- // Open output file
- f=fopen(filename, "wb");
- if(!f) {
- fprintf(stderr, "Failed to open output file [%s] due to the following error: %s", filename, strerror(errno));
- return;
- }
- */
// Open a new session of the fame library.
// (If initialization was successful, it returns a non-null context which
// can then be used for subsequent library calls.)
diff --git a/src/liblame_wrapper.cc b/src/liblame_wrapper.cc
index 751c41b..7af9b68 100644
--- a/src/liblame_wrapper.cc
+++ b/src/liblame_wrapper.cc
@@ -31,6 +31,9 @@
/*
* $Log$
+ * Revision 1.2 2005/07/05 23:15:16 deva
+ * *** empty log message ***
+ *
* Revision 1.1 2005/07/02 11:39:51 deva
* Added some audiocode.
* Moved libfame code out of mov_encoder
@@ -45,25 +48,45 @@ LibLAMEWrapper::LibLAMEWrapper(Info *i)
info = i;
// Init library.
- lamegf = lame_init();
- if(!lamegf) {
+ if( (gfp = lame_init()) == NULL) {
info->error("LAME initialization failed (due to malloc failure!)");
+ return;
}
- lame_init_params(lamegf);
+ lame_set_in_samplerate(gfp, SAMPLE_RATE);
+ lame_set_out_samplerate(gfp, SAMPLE_RATE);
+ lame_set_num_channels(gfp, CHANNELS);
+ // lame 3.91 dies on quality != 5
+ lame_set_quality(gfp, 5);
+ // lame 3.91 doesn't work in mono
+ lame_set_mode(gfp, STEREO);
+ lame_set_brate(gfp, 192);
+ lame_set_strict_ISO(gfp, 1);
+
+ if (lame_init_params(gfp) < 0) {
+ info->error("LAME parameter initialization failed.");
+ return;
+ }
- decoder = NULL;
+ lame_init_bitstream(gfp);
audio_buffer[0] = new int16_t[AUDIO_BUFFER_SIZE];
audio_buffer[1] = new int16_t[AUDIO_BUFFER_SIZE];
+ audio_buffer[2] = new int16_t[AUDIO_BUFFER_SIZE];
+ audio_buffer[3] = new int16_t[AUDIO_BUFFER_SIZE];
+ // And now for the dv decoder!
+ decoder = NULL;
}
LibLAMEWrapper::~LibLAMEWrapper()
{
+ lame_close(gfp);
+
delete audio_buffer[0];
delete audio_buffer[1];
-
+ delete audio_buffer[2];
+ delete audio_buffer[3];
}
Frame *LibLAMEWrapper::encode(Frame *dvframe)
@@ -90,12 +113,17 @@ Frame *LibLAMEWrapper::encode(Frame *dvframe)
*/
// int n, i;
// int16_t* s = ( int16_t * ) sound;
+
dv_decode_full_audio( decoder, dvframe->data, audio_buffer );
/*
- for ( n = 0; n < SAMPLES; ++n )
- for ( i = 0; i < CHANNELS; i++ )
- *s++ = audio_buffer[ i ][ n ];
- */
+ memset(audio_buffer[0], 0, sizeof(audio_buffer[0]));
+ memset(audio_buffer[1], 0, sizeof(audio_buffer[1]));
+ */
+ /*
+ for ( n = 0; n < SAMPLES; ++n )
+ for ( i = 0; i < CHANNELS; i++ )
+ *s++ = audio_buffer[ i ][ n ];
+ */
/*
* input pcm data, output (maybe) mp3 frames.
@@ -104,6 +132,9 @@ Frame *LibLAMEWrapper::encode(Frame *dvframe)
* The required mp3buf_size can be computed from num_samples,
* samplerate and encoding rate, but here is a worst case estimate:
*
+ * return code number of bytes output in mp3buffer. can be 0
+ * if return code = -1: mp3buffer was too small
+ *
* mp3buf_size in bytes = 1.25*num_samples + 7200
*
* I think a tighter bound could be: (mt, March 2000)
@@ -127,12 +158,12 @@ Frame *LibLAMEWrapper::encode(Frame *dvframe)
Frame* audio_frame = new Frame(NULL, (int)(1.25 * SAMPLES + 7200));
const short int *buffer_l = audio_buffer[0]; // PCM data for left channel
- const short int *buffer_r = audio_buffer[0]; // PCM data for right channel
+ const short int *buffer_r = audio_buffer[1]; // PCM data for right channel
const int nsamples = SAMPLES; // number of samples per channel
unsigned char* mp3buf = audio_frame->data; // pointer to encoded MP3 stream
const int mp3buf_size = audio_frame->size; // number of valid octets in this
- int val = lame_encode_buffer(lamegf, buffer_l, buffer_r, nsamples, mp3buf, mp3buf_size);
+ int val = lame_encode_buffer(gfp, buffer_l, buffer_r, nsamples, mp3buf, mp3buf_size);
if(val < 0) {
switch(val) {
@@ -154,5 +185,30 @@ Frame *LibLAMEWrapper::encode(Frame *dvframe)
}
}
+ /*
+ val = lame_encode_flush(gfp, mp3buf, val);
+
+ if(val < 0) {
+ switch(val) {
+ case -1: // mp3buf was too small
+ info->error("Lame encoding failed (during flush), mp3buf was too small.");
+ break;
+ case -2: // malloc() problem
+ info->error("Lame encoding failed (during flush), due to malloc() problem.");
+ break;
+ case -3: // lame_init_params() not called
+ info->error("Lame encoding failed (during flush), lame_init_params() not called.");
+ break;
+ case -4: // psycho acoustic problems
+ info->error("Lame encoding failed (during flush), due to psycho acoustic problems.");
+ break;
+ default:
+ info->error("Lame encoding failed (during flush), due to unknown error.");
+ break;
+ }
+ }
+ */
+ audio_frame->size = val;
+
return audio_frame;
}
diff --git a/src/liblame_wrapper.h b/src/liblame_wrapper.h
index 2d3a769..f30cb9c 100644
--- a/src/liblame_wrapper.h
+++ b/src/liblame_wrapper.h
@@ -31,6 +31,9 @@
/*
* $Log$
+ * Revision 1.2 2005/07/05 23:15:16 deva
+ * *** empty log message ***
+ *
* Revision 1.1 2005/07/02 11:39:51 deva
* Added some audiocode.
* Moved libfame code out of mov_encoder
@@ -52,8 +55,9 @@
#include "info.h"
#define CHANNELS 2
-#define SAMPLES 44100
-#define AUDIO_BUFFER_SIZE SAMPLES/25*sizeof(int16_t)
+#define SAMPLE_RATE 48000
+#define SAMPLES SAMPLE_RATE / 25
+#define AUDIO_BUFFER_SIZE DV_AUDIO_MAX_SAMPLES
class LibLAMEWrapper {
public:
@@ -66,11 +70,11 @@ private:
Info *info;
// LAME stuff
- lame_global_flags *lamegf;
+ lame_global_flags *gfp;
// libdv stuff
dv_decoder_t *decoder;
- int16_t *audio_buffer[2];
+ int16_t *audio_buffer[4];
};
diff --git a/src/mov_encoder.cc b/src/mov_encoder.cc
index 38622c6..fa83830 100644
--- a/src/mov_encoder.cc
+++ b/src/mov_encoder.cc
@@ -39,6 +39,9 @@
/*
* $Log$
+ * Revision 1.34 2005/07/05 23:15:16 deva
+ * *** empty log message ***
+ *
* Revision 1.33 2005/07/02 11:39:52 deva
* Added some audiocode.
* Moved libfame code out of mov_encoder
@@ -144,8 +147,8 @@ MovEncoder::MovEncoder(sem_t *r_sem,
info = i;
info->info("MovEncoder");
- fame = new LibFAMEWrapper(info);
- lame = new LibLAMEWrapper(info);
+ // fame = new LibFAMEWrapper(info);
+ // lame = new LibLAMEWrapper(info);
running = true;
@@ -165,8 +168,8 @@ MovEncoder::~MovEncoder()
{
info->info("~MovEncoder");
- delete fame;
- delete lame;
+ // delete fame;
+ // delete lame;
}
// this runs in a thread
@@ -185,9 +188,13 @@ void MovEncoder::thread_main()
Frame *out_v_frame;
Frame *out_a_frame;
+ LibFAMEWrapper fame(info);
+
while(running) {
sem_wait(input_sem);
+ LibLAMEWrapper lame(info);
+
// Lock inout mutex
pthread_mutex_lock(input_mutex);
item = inputqueue->front();
@@ -203,11 +210,11 @@ void MovEncoder::thread_main()
in_frame = item->at(cnt);
// Encode video
- out_v_frame = fame->encode(in_frame);
+ out_v_frame = fame.encode(in_frame);
out_v_frame->number = in_frame->number+1;
// Encode audio
- out_a_frame = lame->encode(in_frame);
+ out_a_frame = lame.encode(in_frame);
out_a_frame->number = in_frame->number;
delete in_frame;
diff --git a/src/mov_encoder.h b/src/mov_encoder.h
index a54b145..1be2ac5 100644
--- a/src/mov_encoder.h
+++ b/src/mov_encoder.h
@@ -36,6 +36,9 @@
/*
* $Log$
+ * Revision 1.15 2005/07/05 23:15:16 deva
+ * *** empty log message ***
+ *
* Revision 1.14 2005/07/02 11:39:52 deva
* Added some audiocode.
* Moved libfame code out of mov_encoder
@@ -108,8 +111,8 @@ public:
volatile bool running;
private:
- LibFAMEWrapper *fame;
- LibLAMEWrapper *lame;
+ // LibFAMEWrapper *fame;
+ // LibLAMEWrapper *lame;
Info *info;
diff --git a/src/mov_encoder_writer.cc b/src/mov_encoder_writer.cc
index e1179b9..7f982de 100644
--- a/src/mov_encoder_writer.cc
+++ b/src/mov_encoder_writer.cc
@@ -31,6 +31,9 @@
/*
* $Log$
+ * Revision 1.9 2005/07/05 23:15:16 deva
+ * *** empty log message ***
+ *
* Revision 1.8 2005/06/30 10:04:35 deva
* *** empty log message ***
*
@@ -134,11 +137,11 @@ void MovEncoderWriter::thread_main()
Frame *frame;
+ write_multiplex_header();
+
while(running) {
sem_wait(sem);
- // int poolsize;
-
// Lock output mutex
pthread_mutex_lock(mutex);
frame = queue->top();
@@ -150,7 +153,7 @@ void MovEncoderWriter::thread_main()
int wrote = 0;
while(frame && (frame->number == frame_number)) {
- int ret;
+ int ret = 0;
ret = file->Write(frame->data, frame->size);
frame_number++;
@@ -171,9 +174,129 @@ void MovEncoderWriter::thread_main()
pthread_mutex_unlock(mutex);
// Unlock output mutex
}
-
- // info->info("Wrote %d frames, pool size %d - exp: %d", wrote, poolsize, frame_number);
}
info->info("MovEncoderWriter::stop");
}
+
+
+/**
+ * Byte# Data Details
+ * ===================================================================
+ * 1-4 Sequence header In Hex 000001B3
+ * code
+ * 12 bits Horizontal size In pixels
+ * 12 bits Vertical size In pixels
+ * 4 bits Pel aspect ratio See below
+ * 18 bits Frame rate See below
+ * 1 bit Marker bit Always 1
+ * 10 bits VBV buffer size Minimum buffer needed to decode this
+ * sequence of pictures; in 16KB units
+ * 1 bit Constrained
+ * parameter flag
+ * 1 bit Load intra 0: false; 1: true (matrix follows)
+ * quantizer matrix
+ * 64 bytes Intra quantizer Optional
+ * matrix
+ * 1 bit Load nonintra 0: false; 1: true (matrix follows)
+ * quantizer matrix
+ * 64 bytes Nonintra quantizer Optional
+ * matrix
+ * - Squence extension Optional
+ * Data
+ * - User data Optional application-dependent data
+ * ===================================================================
+ */
+/**
+ * Pel aspect ratio:
+ * The actual height of a 12 pixels wide area (normal is 12 = square)
+ * Aspect Ratio (from http://homepage.mac.com/rnc/EditMpegHeaderIFO.html)
+ * 1 = 1:1
+ * 2 = 4:3
+ * 3 = 16:9
+ * 4 = 2.211 (not used in dvd)
+ * 12 = unknown (or undefined!)
+ */
+
+/**
+ * Frame rates:
+ * 1 = 23.976 frames/sec
+ * 2 = 24
+ * 3 = 25
+ * 4 = 29.97
+ * 5 = 30
+ * 6 = 50
+ * 7 = 59.94
+ * 8 = 60
+ */
+void MovEncoderWriter::write_video_header()
+{
+ char header[] = {
+ 0x00, 0x00, 0x01, 0xB3, // Header
+ 0x2D, 0x02, 0x40, // 12 bits width, 12 bits height - 720 (hex: 2D0) x 576 (hex: 240)
+ 0x23, // 4 bits aspect (12 (hex C) works!) 4 bits frameratecode - 3 := 25fps (hex: 3)
+ 0x00, 0x00, // Bitrate - 0 (hex : 0)
+ 0x20, 0xA5, 0x10, 0x12, 0x12, 0x14,
+ 0x14, 0x14, 0x16, 0x16, 0x16, 0x16, 0x18, 0x18, 0x19, 0x18, 0x18, 0x1A, 0x1B, 0x1B, 0x1B, 0x1B,
+ 0x1A, 0x1C, 0x1D, 0x1E, 0x1E, 0x1E, 0x1D, 0x1C, 0x1E, 0x1F, 0x20, 0x21, 0x21, 0x20, 0x1F, 0x1E,
+ 0x21, 0x23, 0x23, 0x24, 0x23, 0x23, 0x21, 0x25, 0x26, 0x27, 0x27, 0x26, 0x25, 0x29, 0x2A, 0x2A,
+ 0x2A, 0x29, 0x2D, 0x2D, 0x2D, 0x2D, 0x30, 0x31, 0x30, 0x34, 0x34, 0x38, 0x16, 0x00, 0xF0, 0xC4,
+ 0x00, 0x00, 0x01, 0xB8, 0x00, 0x08, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x0A, 0x72, 0x00,
+ 0x00, 0x00, 0x01, 0x01, 0x13, 0xF9, 0x50, 0x02, 0xBC, 0xB2, 0xB8, 0xBE, 0x68, 0x8B, 0xA4, 0x9F,
+ 0xC5, 0xB5, 0xCA, 0x00, 0x56, 0x76, 0x39, 0x65, 0xF2, 0x30, 0x8B, 0xA6, 0x9D, 0x50, 0x69, 0xE7,
+ 0xDA, 0xFE, 0x13, 0xCF, 0xB7, 0xFF, 0x8F, 0xF4, 0xCE, 0x7B, 0xFA, 0x0E, 0xF0, 0x66, 0xAE, 0x1C,
+ 0x5D, 0xE7, 0x00, 0xC8, 0x0A, 0x92, 0xB9, 0x29, 0x3C, 0x21, 0x23, 0xF1, 0xD6, 0x40, 0x13, 0x06,
+ 0xF0, 0x10, 0x10, 0xC6, 0x27, 0x80, 0xA0, 0x34, 0xE1, 0xC8, 0xE4, 0x0F, 0x74, 0x91, 0xDA, 0xC4,
+ 0x03, 0xA0, 0xDC, 0x03, 0x12, 0x60, 0x18, 0x49, 0x27, 0x1D, 0xD4, 0xBC, 0x67, 0x0E, 0x54, 0x8C,
+ 0x96, 0xFC, 0x5D, 0xC0, 0x06, 0xE0, 0x1A, 0x72, 0x11, 0x7C, 0x9A, 0x8D, 0xC9, 0x45, 0x89, 0x6D,
+ 0xCD, 0xC4, 0x0B, 0x63, 0xDC, 0x90, 0x18, 0x24, 0x00, 0xEC, 0x84, 0x90, 0x18, 0x10, 0xC9, 0x3B,
+ 0x1E, 0xA7, 0x60, 0x3C, 0x9D, 0x74, 0x80, 0x76, 0x05, 0x0B, 0x02, 0x81, 0xA9, 0x29, 0x39, 0x68,
+ 0x53, 0x8F, 0x59, 0xF1, 0xBF, 0x93, 0xFB, 0xA0, 0x04, 0x01, 0xBC, 0xB0, 0xCE, 0x18, 0xE1, 0x25
+ };
+
+ file->Write(header, sizeof(header));
+
+
+}
+/*
+4449 0433 0000 0000
+*/
+void MovEncoderWriter::write_audio_header()
+{
+ char header[] = {
+ 0x44, 0x49, 0x04, 0x33,
+ 0x00, 0x00, 0x00, 0x00
+ };
+
+ file->Write(header, sizeof(header));
+}
+
+void MovEncoderWriter::write_multiplex_header()
+{
+ char header[] = {
+ 0x00, 0x00, 0xba, 0x01,
+ 0x00,
+ 0x21, 0x00, 0x01, 0x80, 0x19, 0x8d, 0x0a,
+ 0x00, 0x00, 0xbb, 0x01,
+ 0x0c, 0x00, 0x0a, 0x80, 0x06, 0x8d, 0xff, 0xe1, 0xe0, 0xe0, 0xc0, 0x25, 0x20, 0xc0a, 0x00, 0x00,
+ 0xba, 0x01, 0x00, 0x21, 0x15, 0x01, 0x80, 0x6d, 0x8d, 0x0a
+ /*
+ 0x00, 0x00, 0xe0, 0x01a, 0x3d, 0x04,
+ 0x25, 0x60, 0x00, 0x31, 0xd7, 0x03, 0x11, 0x8f, 0x03, 0x00, 0x19, 0xc0, 0x00, 0x00a, 0xb3, 0x01,
+ 0x00, 0x16, 0xc4, 0xf0, 0x38, 0x01, 0x85, 0xa0, 0x11, 0x10, 0x12, 0x11, 0x12, 0x12a, 0x13, 0x13,
+ 0x13, 0x13, 0x14, 0x14, 0x14, 0x14, 0x15, 0x14, 0x15, 0x15, 0x15, 0x15, 0x16, 0x15a, 0x16, 0x16,
+ 0x16, 0x16, 0x16, 0x16, 0x17, 0x17, 0x17, 0x17, 0x17, 0x17, 0x17, 0x17, 0x18, 0x18a, 0x19, 0x18,
+ 0x18, 0x18, 0x19, 0x18, 0x1a, 0x1a, 0x1a, 0x1a, 0x1b, 0x19, 0x1b, 0x1b, 0x1b, 0x1ba, 0x1c, 0x1c,
+ 0x1c, 0x1c, 0x1e, 0x1e, 0x1f, 0x1e, 0x21, 0x1f, 0x00, 0x00, 0xb2, 0x01, 0x87, 0x00a, 0x00, 0x81,
+ 0x65, 0x26, 0x63, 0x6e, 0x64, 0x6f, 0x64, 0x65, 0x62, 0x20, 0x20, 0x79, 0x4d, 0x54a, 0x47, 0x50,
+ 0x6e, 0x45, 0x20, 0x63, 0x76, 0x28, 0x72, 0x65, 0x20, 0x2e, 0x2e, 0x32, 0x32, 0x35a, 0x2e, 0x31,
+ 0x38, 0x35, 0x31, 0x2e, 0x39, 0x36, 0x00, 0x29, 0x00, 0x00, 0xb8, 0x01, 0xab, 0x00a, 0x20, 0x22,
+ 0x00, 0x00, 0x00, 0x01, 0x8d, 0x00, 0x78, 0x09, 0x00, 0x00, 0x01, 0x01, 0xf9, 0x1ba, 0x20, 0xf8,
+ 0x02, 0x5e, 0xa1, 0x18, 0x11, 0x30, 0x70, 0xfe, 0xd3, 0x00, 0x4c, 0xdf, 0x84, 0x02a, 0x30, 0xd0,
+ 0x9e, 0x5b, 0x77, 0x81, 0x41, 0xcc, 0xf4, 0x02, 0xc5, 0x10, 0x40, 0x08, 0xf3, 0x8fa, 0x06, 0x80,
+ 0xfa, 0x9e, 0xe7, 0x95, 0x3c, 0x80, 0x09, 0xc1, 0x20, 0xbd, 0xbf, 0x07, 0xd0, 0xe2a, 0xaa, 0x62
+ */
+ };
+
+ file->Write(header, sizeof(header));
+}
diff --git a/src/mov_encoder_writer.h b/src/mov_encoder_writer.h
index 6419b25..63ddec4 100644
--- a/src/mov_encoder_writer.h
+++ b/src/mov_encoder_writer.h
@@ -31,6 +31,9 @@
/*
* $Log$
+ * Revision 1.5 2005/07/05 23:15:16 deva
+ * *** empty log message ***
+ *
* Revision 1.4 2005/06/16 21:28:57 deva
* Rewrote thread object
* Fixed bug in mov_encoder (pushed read_sem too many times, whihc lead to
@@ -83,6 +86,10 @@ private:
sem_t *sem;
unsigned int frame_number;
+
+ void write_audio_header();
+ void write_video_header();
+ void write_multiplex_header();
};
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-29 07:24:37 +0000