Revel_Error Revel_BaseEncoder::EncodeAudio(const void *sampleBuffer,
const int numBytes, int *numTotalBytes)
{
// Make sure it's safe to be encoding.
if (!m_isEncoding)
return REVEL_ERR_BUSY;
if (m_params.hasAudio != 1)
return REVEL_ERR_NONE;
// Check args
if (numBytes == 0)
return REVEL_ERR_NONE;
if (sampleBuffer == NULL)
return REVEL_ERR_PARAMS;
int err = AVI_write_audio(m_outFile, (char*)sampleBuffer, numBytes);
if (err != 0)
return REVEL_ERR_FILE;
m_totalOutBytes += numBytes;
if (numTotalBytes != NULL)
*numTotalBytes = AVI_audio_bytes(m_outFile);
return REVEL_ERR_NONE;
}
bool CAviAudioByteStream::start_next_frame (uint8_t **buffer,
uint32_t *buflen,
frame_timestamp_t *ts,
void **ud)
{
int value;
if (m_buffer_on < m_this_frame_size) {
value = m_this_frame_size - m_buffer_on;
memmove(m_buffer,
m_buffer + m_buffer_on,
m_this_frame_size - m_buffer_on);
m_this_frame_size -= m_buffer_on;
} else {
value = 0;
m_this_frame_size = 0;
}
m_buffer_on = 0;
m_parent->lock_file_mutex();
AVI_set_audio_position(m_parent->get_file(), m_file_pos);
int ret;
ret = AVI_read_audio(m_parent->get_file(),
(char *)m_buffer + value,
m_max_frame_size - m_this_frame_size);
m_parent->unlock_file_mutex();
//player_debug_message("return from avi read %d", ret);
m_this_frame_size += ret;
m_file_pos += ret;
if (m_file_pos >= AVI_audio_bytes(m_parent->get_file())) {
m_eof = 1;
}
*buffer = m_buffer;
*buflen = m_this_frame_size;
#if 0
uint64_t ret;
ret = m_frame_on;
ret *= m_samples_per_frame;
ret *= 1000;
ret /= m_frame_rate;
player_debug_message("Start next frame "U64 " offset %u %u",
ret, m_byte_on, m_this_frame_size);
return (ret);
#endif
ts->msec_timestamp = 0;
ts->audio_freq_timestamp = 0;
ts->audio_freq = AVI_audio_rate(m_parent->get_file());
ts->timestamp_is_pts = false;
return true;
}
void AVI_info(avi_t *avifile)
{
long frames, rate, mp3rate, chunks, tot_bytes;
int width, height, format, chan, bits;
int j, tracks, tmp;
double fps;
char *codec;
frames = AVI_video_frames(avifile);
width = AVI_video_width(avifile);
height = AVI_video_height(avifile);
fps = AVI_frame_rate(avifile);
codec = AVI_video_compressor(avifile);
printf("[avilib] V: %6.3f fps, codec=%s, frames=%ld, width=%d, height=%d\n", fps, ((strlen(codec)==0)? "RGB": codec), frames, width, height);
tracks=AVI_audio_tracks(avifile);
tmp=AVI_get_audio_track(avifile);
for(j=0; j<tracks; ++j) {
AVI_set_audio_track(avifile, j);
rate = AVI_audio_rate(avifile);
format = AVI_audio_format(avifile);
chan = AVI_audio_channels(avifile);
bits = AVI_audio_bits(avifile);
mp3rate= AVI_audio_mp3rate(avifile);
chunks = AVI_audio_chunks(avifile);
tot_bytes = AVI_audio_bytes(avifile);
if(chan>0) {
printf("[avilib] A: %ld Hz, format=0x%02x, bits=%d, channels=%d, bitrate=%ld kbps,\n", rate, format, bits, chan, mp3rate);
printf("[avilib] %ld chunks, %ld bytes, %s\n", chunks, tot_bytes, (AVI_get_audio_vbr(avifile)?"VBR":"CBR"));
} else
printf("[avilib] A: no audio track found\n");
}
AVI_set_audio_track(avifile, tmp); //reset
}
/*
* avi2raw
* required arg1 should be the input AVI file
* required arg2 should be the output RAW file
*/
int main(int argc, char** argv)
{
/* configurable variables from command line */
bool extractVideo = TRUE; /* FALSE implies extract audio */
u_int32_t start = 0; /* secs, start offset */
u_int32_t duration = 0; /* secs, 0 implies entire file */
bool quiet = FALSE;
/* internal variables */
char* aviFileName = NULL;
char* rawFileName = NULL;
avi_t* aviFile = NULL;
FILE* rawFile = NULL;
int verbose = FALSE;
u_int32_t numBytes, totBytes = 0;
bool eliminate_short_frames = FALSE;
uint32_t short_frames_len;
/* begin process command line */
progName = argv[0];
while (1) {
int c = -1;
int option_index = 0;
static struct option long_options[] = {
{ "audio", 0, 0, 'a' },
{ "eliminate-short-frames", optional_argument, 0, 'e'},
{ "length", 1, 0, 'l' },
{ "quiet", 0, 0, 'q' },
{ "start", 1, 0, 's' },
{ "video", 0, 0, 'v' },
{ "version", 0, 0, 'V'},
{ "verbose", 0, 0, 'R'},
{ "help", 0, 0, 'h'},
{ NULL, 0, 0, 0 }
};
c = getopt_long_only(argc, argv, "ael:qs:vVh",
long_options, &option_index);
if (c == -1)
break;
switch (c) {
case 'h':
fprintf(stderr, "%s - %s version %s\n", progName,
MPEG4IP_PACKAGE, MPEG4IP_VERSION);
fprintf(stderr, "options:\n");
fprintf(stderr, " --audio - extract audio track\n");
fprintf(stderr, " --length <length> - extract <length> secs\n");
fprintf(stderr, " --quiet - quiet mode\n");
fprintf(stderr, " --start <time> - extract from <start> time\n");
fprintf(stderr, " --video - extract video track\n");
fprintf(stderr, " --eliminate-short-frames <bytes> - eliminate short frames of bytes or less - default 4\n");
return 0;
case 'a': {
extractVideo = FALSE;
break;
}
case 'e':
eliminate_short_frames = TRUE;
if (optarg) {
if (optarg[0] == '=') optarg[0] = ' ';
if (sscanf(optarg, "%u", &short_frames_len) != 1) {
fprintf(stderr, "%s:bad eliminate length %s\n",
progName, optarg);
}
} else {
short_frames_len = 4;
}
break;
case 'l': {
/* --length=<secs> */
u_int i;
if (sscanf(optarg, "%u", &i) < 1) {
fprintf(stderr,
"%s: bad length specified: %s\n",
progName, optarg);
} else {
duration = i;
}
break;
}
case 'q': {
quiet = TRUE;
break;
}
case 's': {
/* --start=<secs> */
u_int i;
if (sscanf(optarg, "%u", &i) < 1) {
fprintf(stderr,
"%s: bad start specified: %s\n",
progName, optarg);
} else {
start = i;
}
break;
}
case 'v': {
extractVideo = TRUE;
break;
}
case '?':
break;
case 'R':
verbose = TRUE; quiet = FALSE;
break;
case 'V':
fprintf(stderr, "%s - %s version %s\n", progName,
MPEG4IP_PACKAGE, MPEG4IP_VERSION);
return(0);
default:
fprintf(stderr, "%s: unknown option specified, ignoring: %c\n",
progName, c);
}
}
/* check that we have at least two non-option arguments */
if ((argc - optind) < 2) {
fprintf(stderr,
"usage: %s <avi-file> <raw-file>\n",
progName);
exit(1);
}
/* point to the specified file names */
aviFileName = argv[optind++];
rawFileName = argv[optind++];
/* warn about extraneous non-option arguments */
if (optind < argc) {
fprintf(stderr, "%s: unknown options specified, ignoring: ", progName);
while (optind < argc) {
fprintf(stderr, "%s ", argv[optind++]);
}
fprintf(stderr, "\n");
}
/* end processing of command line */
/* open the AVI file */
aviFile = AVI_open_input_file(aviFileName, TRUE);
if (aviFile == NULL) {
fprintf(stderr,
"%s: error %s: %s\n",
progName, aviFileName, AVI_strerror());
exit(4);
}
if (!quiet) {
fprintf(stderr, "%s - %s version %s\n",
progName, MPEG4IP_PACKAGE, MPEG4IP_VERSION);
}
/* open the RAW file */
rawFile = fopen(rawFileName, "wb");
if (rawFile == NULL) {
fprintf(stderr,
"%s: error opening %s: %s\n",
progName, rawFileName, strerror(errno));
exit(5);
}
if (extractVideo) {
double videoFrameRate = AVI_video_frame_rate(aviFile);
u_int32_t numVideoFrames = AVI_video_frames(aviFile);
u_int32_t fileDuration = ceil(numVideoFrames / videoFrameRate);
u_int32_t numDesiredVideoFrames;
u_int32_t videoFramesRead = 0;
u_int32_t emptyFramesRead = 0;
/* get a buffer large enough to handle a frame of raw SDTV */
u_char* buf = (u_char*)malloc(768 * 576 * 4);
if (duration) {
numDesiredVideoFrames = duration * videoFrameRate;
} else {
numDesiredVideoFrames = numVideoFrames;
}
if (buf == NULL) {
fprintf(stderr,
"%s: error allocating memory: %s\n",
progName, strerror(errno));
exit(6);
}
/* check that start offset is valid */
if (start > fileDuration) {
fprintf(stderr,
"%s: specified start is past the end of the file\n",
progName);
exit(7);
}
if (AVI_seek_start(aviFile)) {
fprintf(stderr,
"%s: bad seek: %s\n",
progName, AVI_strerror());
exit(8);
}
if (AVI_set_video_position(aviFile, (long) ROUND(start * videoFrameRate), NULL)) {
fprintf(stderr,
"%s: bad seek: %s\n",
progName, AVI_strerror());
exit(9);
}
#ifdef DEBUG_H264
h264_decode_t dec;
#endif
while (TRUE) {
numBytes = AVI_read_frame(aviFile, (char *)buf);
/* read error */
if (numBytes < 0) {
break;
}
totBytes += numBytes;
videoFramesRead++;
if (verbose) {
printf("frame %d - len %u total %u\n",
videoFramesRead, numBytes, totBytes);
}
/*
* note some capture programs
* insert a zero length frame occasionally
* hence numBytes == 0, but we're not a EOF
*/
if ((eliminate_short_frames && numBytes > short_frames_len) ||
(eliminate_short_frames == FALSE && numBytes)) {
// test
#ifdef DEBUG_H264
uint32_t offset = 0, read;
do {
if (h264_is_start_code(buf + offset)) {
int ret =
h264_detect_boundary(buf + offset,
numBytes - offset,
&dec);
printf(" frame offset %d nal type %d slice %d %d\n",
offset,
dec.nal_unit_type,
dec.slice_type,
ret);
}
read = h264_find_next_start_code(buf + offset,
numBytes - offset);
offset += read;
} while (read != 0 && offset < numBytes);
#endif
if (fwrite(buf, 1, numBytes, rawFile) != numBytes) {
fprintf(stderr,
"%s: error writing %s: %s\n",
progName, rawFileName, strerror(errno));
break;
}
} else {
emptyFramesRead++;
}
if (videoFramesRead >= numDesiredVideoFrames) {
break;
}
}
if (verbose) {
printf("read %u video bytes\n", totBytes);
}
if (numBytes < 0) {
printf("%s: error reading %s, frame %d, %s\n",
progName, aviFileName, videoFramesRead + 1, AVI_strerror());
}
if (videoFramesRead < numDesiredVideoFrames) {
fprintf(stderr,
"%s: warning: could only extract %u seconds of video (%u of %u frames)\n",
progName, (unsigned int)ceil(videoFramesRead / videoFrameRate),
videoFramesRead, numDesiredVideoFrames);
}
if (emptyFramesRead) {
fprintf(stderr,
"%s: warning: %u zero length frames ignored\n",
progName, emptyFramesRead);
}
if (!quiet) {
printf("%u video frames written\n",
videoFramesRead - emptyFramesRead);
}
/* cleanup */
free(buf);
} else {
/* extract audio */
u_int32_t audioBytesRead = 0;
u_char *buf = (u_char*) malloc(8*1024);
u_int32_t numDesiredAudioBytes = AVI_audio_bytes(aviFile);
u_int32_t audioBytesPerSec = 0;
if (start != 0) {
u_int32_t numAudioBytes = numDesiredAudioBytes;
u_int32_t fileDuration;
audioBytesPerSec = AVI_audio_rate(aviFile) *
((AVI_audio_bits(aviFile) + 7) / 8) * AVI_audio_channels(aviFile);
fileDuration = ceil(numAudioBytes / audioBytesPerSec);
numDesiredAudioBytes = duration * audioBytesPerSec;
/* check that start offset is valid */
if (start > fileDuration) {
fprintf(stderr,
"%s: specified start is past the end of the file\n",
progName);
exit(7);
}
if (AVI_seek_start(aviFile)) {
fprintf(stderr,
"%s: bad seek: %s\n",
progName, AVI_strerror());
exit(8);
}
if (AVI_set_audio_position(aviFile, start * audioBytesPerSec)) {
fprintf(stderr,
"%s: bad seek: %s\n",
progName, AVI_strerror());
exit(9);
}
} else {
if (AVI_seek_start(aviFile)) {
fprintf(stderr,
"%s: bad seek: %s\n",
progName, AVI_strerror());
exit(8);
}
if (AVI_set_audio_position(aviFile, 0)) {
fprintf(stderr,
"%s: bad seek: %s\n",
progName, AVI_strerror());
exit(9);
}
}
while ((numBytes = AVI_read_audio(aviFile, (char *)buf, sizeof(buf))) > 0) {
if (fwrite(buf, 1, numBytes, rawFile) != numBytes) {
fprintf(stderr,
"%s: error writing %s: %s\n",
progName, rawFileName, strerror(errno));
break;
}
audioBytesRead += numBytes;
if (numDesiredAudioBytes
&& audioBytesRead >= numDesiredAudioBytes) {
break;
}
}
if (verbose) {
printf("read %u audio bytes\n", audioBytesRead);
}
if (duration && audioBytesRead < numDesiredAudioBytes) {
fprintf(stderr,
"%s: warning: could only extract %u seconds of audio\n",
progName, audioBytesPerSec == 0 ? audioBytesRead : audioBytesRead / audioBytesPerSec);
}
if (!quiet && AVI_audio_bits(aviFile) != 0) {
printf("%u audio samples written\n",
audioBytesRead / ((AVI_audio_bits(aviFile) + 7) / 8));
}
}
/* cleanup */
AVI_close(aviFile);
fclose(rawFile);
return(0);
}
/*
* Create the media for the quicktime file, and set up some session stuff.
*/
int create_media_for_avi_file (CPlayerSession *psptr,
const char *name,
char *errmsg,
uint32_t errlen,
int have_audio_driver,
control_callback_vft_t *cc_vft)
{
CAviFile *Avifile1 = NULL;
avi_t *avi;
CPlayerMedia *mptr;
avi = AVI_open_input_file(name, 1);
if (avi == NULL) {
snprintf(errmsg, errlen, "%s", AVI_strerror());
player_error_message("%s", AVI_strerror());
return (-1);
}
int video_count = 1;
codec_plugin_t *plugin;
video_query_t vq;
const char *codec_name = AVI_video_compressor(avi);
player_debug_message("Trying avi video codec %s", codec_name);
plugin = check_for_video_codec(STREAM_TYPE_AVI_FILE,
codec_name,
NULL,
-1,
-1,
NULL,
0,
&config);
if (plugin == NULL) {
video_count = 0;
} else {
vq.track_id = 1;
vq.stream_type = STREAM_TYPE_AVI_FILE;
vq.compressor = codec_name;
vq.type = -1;
vq.profile = -1;
vq.fptr = NULL;
vq.h = AVI_video_height(avi);
vq.w = AVI_video_width(avi);
vq.frame_rate = AVI_video_frame_rate(avi);
vq.config = NULL;
vq.config_len = 0;
vq.enabled = 0;
vq.reference = NULL;
}
int have_audio = 0;
int audio_count = 0;
audio_query_t aq;
if (AVI_audio_bytes(avi) != 0) {
have_audio = 1;
plugin = check_for_audio_codec(STREAM_TYPE_AVI_FILE,
NULL,
NULL,
AVI_audio_format(avi),
-1,
NULL,
0,
&config);
if (plugin != NULL) {
audio_count = 1;
aq.track_id = 1;
aq.stream_type = STREAM_TYPE_AVI_FILE;
aq.compressor = NULL;
aq.type = AVI_audio_format(avi);
aq.profile = -1;
aq.fptr = NULL;
aq.sampling_freq = AVI_audio_rate(avi);
aq.chans = AVI_audio_channels(avi);
aq.config = NULL;
aq.config_len = 0;
aq.enabled = 0;
aq.reference = NULL;
}
}
if (cc_vft != NULL && cc_vft->media_list_query != NULL) {
(cc_vft->media_list_query)(psptr, video_count, &vq, audio_count, &aq);
} else {
if (video_count != 0) vq.enabled = 1;
if (audio_count != 0) aq.enabled = 1;
}
if ((video_count == 0 || vq.enabled == 0) &&
(audio_count == 0 || aq.enabled == 0)) {
snprintf(errmsg, errlen, "No audio or video tracks enabled or playable");
AVI_close(avi);
return -1;
}
Avifile1 = new CAviFile(name, avi, vq.enabled, audio_count);
psptr->set_media_close_callback(close_avi_file, Avifile1);
if (video_count != 0 && vq.enabled) {
mptr = new CPlayerMedia(psptr);
if (mptr == NULL) {
return (-1);
}
video_info_t *vinfo = MALLOC_STRUCTURE(video_info_t);
if (vinfo == NULL)
return (-1);
vinfo->height = vq.h;
vinfo->width = vq.w;
player_debug_message("avi file h %d w %d frame rate %g",
vinfo->height,
vinfo->width,
vq.frame_rate);
plugin = check_for_video_codec(STREAM_TYPE_AVI_FILE,
codec_name,
NULL,
-1,
-1,
NULL,
0,
&config);
int ret;
ret = mptr->create_video_plugin(plugin,
STREAM_TYPE_AVI_FILE,
codec_name,
-1,
-1,
NULL,
vinfo,
NULL,
0);
if (ret < 0) {
snprintf(errmsg, errlen, "Failed to create video plugin %s",
codec_name);
player_error_message("Failed to create plugin data");
delete mptr;
return -1;
}
CAviVideoByteStream *vbyte = new CAviVideoByteStream(Avifile1);
if (vbyte == NULL) {
delete mptr;
return (-1);
}
vbyte->config(AVI_video_frames(avi), vq.frame_rate);
ret = mptr->create(vbyte, TRUE, errmsg, errlen);
if (ret != 0) {
return (-1);
}
}
int seekable = 1;
if (have_audio_driver > 0 && audio_count > 0 && aq.enabled != 0) {
plugin = check_for_audio_codec(STREAM_TYPE_AVI_FILE,
NULL,
NULL,
aq.type,
-1,
NULL,
0,
&config);
CAviAudioByteStream *abyte;
mptr = new CPlayerMedia(psptr);
if (mptr == NULL) {
return (-1);
}
audio_info_t *ainfo;
ainfo = MALLOC_STRUCTURE(audio_info_t);
ainfo->freq = aq.sampling_freq;
ainfo->chans = aq.chans;
ainfo->bitspersample = AVI_audio_bits(avi);
int ret;
ret = mptr->create_audio_plugin(plugin,
aq.stream_type,
aq.compressor,
aq.type,
aq.profile,
NULL,
ainfo,
NULL,
0);
if (ret < 0) {
delete mptr;
player_error_message("Couldn't create audio from plugin %s",
plugin->c_name);
return -1;
}
abyte = new CAviAudioByteStream(Avifile1);
ret = mptr->create(abyte, FALSE, errmsg, errlen);
if (ret != 0) {
return (-1);
}
seekable = 0;
}
psptr->session_set_seekable(seekable);
if (audio_count == 0 && have_audio != 0) {
snprintf(errmsg, errlen, "Unknown Audio Codec in avi file ");
return (1);
}
if (video_count != 1) {
snprintf(errmsg, errlen, "Unknown Video Codec %s in avi file",
codec_name);
return (1);
}
return (0);
}