/**
* Reads a frame via <code>av_read_frame(AVFormatContext, AVPacket)</code>,
* decodes it to a AVPacket, and writes the result to the
* Java-side <code>nativeBuffer</code>.
*
* @param aio current FFAudioIO
* @return a negative number, if something went wrong
*/
int ff_fill_buffer(FFAudioIO *aio) {
int res = 0;
int read_frame = 0;
aio->timestamp += aio->decode_packet.duration;
while (res == 0 && read_frame >= 0) {
read_frame = av_read_frame(aio->format_context, &aio->decode_packet);
if (read_frame >= 0) {
res = decode_packet(aio, 0);
#ifdef DEBUG
fprintf(stderr, "res : %i\n", res);
fprintf(stderr, "read_frame: %i\n", read_frame);
fprintf(stderr, "duration : %i\n", aio->decode_packet.duration);
fprintf(stderr, "timestamp : %" PRId64 "\n", aio->timestamp);
fprintf(stderr, "pts : %" PRId64 "\n", aio->decode_packet.pts);
fprintf(stderr, "dts : %" PRId64 "\n", aio->decode_packet.dts);
#endif
av_packet_unref(&(aio->decode_packet));
} else {
#ifdef DEBUG
fprintf(stderr, "Reading cached frames: %i\n", aio->got_frame);
#endif
// flush cached frames
av_packet_unref(&(aio->decode_packet));
res = decode_packet(aio, 1);
}
}
return res;
}
void packet_handler(const u_char *pkt_data, int caplen){
char command_o[100];
int commandlen=0;
int identified = 0;
int ac=0;
for ( ac =0; ac< caplen; ac++){
if (pkt_data[ac] == 'I' && pkt_data[ac+1] == 'N' && pkt_data[ac+2] == 'T' && pkt_data[ac+3] == 'C' && pkt_data[ac+4] == 'P'){
identified = 1;
break;
}
}
if(identified){
if(decode_packet(&gcry_hd,&pkt_data[54+ac],caplen-(54+ac)-10,command_o, &commandlen,&seq)==0){
//printf("\r\n SENT %s (%i) ->%i \t",command_o, strlen(command_o),seq);
//fflush(stdout);
sendto(sock,command_o,strlen(command_o),0,(const struct sockaddr *)&server,sizeof(struct sockaddr_in));
lastseq=seq;
}
}
}
//This function inserts dummy data into the cache, fooling it into
//believing that data is being served locally
//This does not really require a callback
uint8_t madn_register_server(MADN_INSTANCE *env, MADN_DATAID id)
{
srand(time(NULL));
while(check_decoded_cache(env, id) != 1)
{
MADN_PKT_DATA* data1 = create_data_pkt();
set_packet_node((MADN_PTR) data1, env->globals->NODE_ID);
strncpy((char*) &data1->bloom, "abcdefghijklmno", 16);
data1->id.chunk = id.chunk;
data1->id.stripe = id.stripe;
int j;
for (j = 0; j < PIECES_DIM/sizeof(int); j++)
{
data1->pieces[j] = rand();
}
//strncpy((char*) &data1->pieces, "abcdefghijklmnopqrstuvwxyzABCDE", 32);
strcpy((char*) &data1->data, "Mary had a little lamb.");
//add_coded_packet_cache(env, data1);
decode_packet(env, data1);
free_data_pkt(&data1);
//assert(ret != 0);
}
return 0;
}
// Return packet type. If no packet avilable, return FAILURE, or READ_ERROR if timeout
static int read_packet(mqtt_client_t* c, mqtt_timer_t* timer)
{
int rc = MQTT_FAILURE;
mqtt_header_t header = {0};
int len = 0;
int rem_len = 0;
/* 1. read the header byte. This has the packet type in it */
if (c->ipstack->mqttread(c->ipstack, c->readbuf, 1, mqtt_timer_left_ms(timer)) != 1)
goto exit;
len = 1;
/* 2. read the remaining length. This is variable in itself */
len += decode_packet(c, &rem_len, mqtt_timer_left_ms(timer));
if (len <= 1 || len + rem_len > c->readbuf_size) /* if packet is too big to fit in our readbuf, abort */
{
rc = MQTT_READ_ERROR;
goto exit;
}
mqtt_packet_encode(c->readbuf + 1, rem_len); /* put the original remaining length back into the buffer */
/* 3. read the rest of the buffer using a callback to supply the rest of the data */
if (rem_len > 0 && (c->ipstack->mqttread(c->ipstack, c->readbuf + len, rem_len, mqtt_timer_left_ms(timer)) != rem_len))
{
rc = MQTT_READ_ERROR;
goto exit;
}
header.byte = c->readbuf[0];
rc = header.bits.type;
exit:
return rc;
}
G_GNUC_INTERNAL
void stream_h264_data(display_stream *st)
{
int width, height;
uint8_t *data;
int size = stream_get_current_frame(st, &data);
stream_get_dimensions(st, &width, &height);
if(st->stream_width != width || st->stream_height != height) {
st->stream_width = width;
st->stream_height = height;
stream_h264_finit(st);
stream_h264_init(st);
st->rgba_buf = g_malloc0(st->stream_width * st->stream_height * 4);
}
st->out_frame = st->rgba_buf;
av_init_packet(&st->packet);
st->packet.data = data;
st->packet.size = size;
decode_packet(st, width, height);
av_free_packet(&st->packet);
}
ssize_t NextPacket(int fill1, void *buffer, size_t buffer_size, int fill2,
struct sockaddr *sock, socklen_t *size) {
// ssize_t NextPacket(void *buffer, size_t buffer_size) {
struct pcap_pkthdr *header;
u_char *pkt_data;
int i;
i = pcap_next_ex(pcap_handle, &header, (const u_char**)&pkt_data);
if ( i != 1 )
return -2;
*size = sizeof(struct sockaddr_in);
return decode_packet(header, pkt_data, buffer, sock);
}
int attempt_recieve()
{
char buffer[DEVICE_STATE_SIZE];
int length;
struct timeval start, end;
long usec;
double intpart;
struct timeval timeout;
timeout.tv_sec = update_time/1000;
timeout.tv_usec = (update_time%1000) * 1000;
gettimeofday(&start, NULL);
while(1)
{
if (setsockopt (client_tcp_sock, SOL_SOCKET, SO_RCVTIMEO, (char *)&timeout, sizeof(timeout)) < 0)
{
LOGERRNO("setsockopt", "Failed to set timeout for recv socket\n");
sleep(5);
}
length = recv(client_tcp_sock, buffer, 11, 0);
if(length < 0)
{
if(errno == EAGAIN || errno == EWOULDBLOCK)
break;
LOGERRNO("recv", "Error when attempt to receive on TCP socket\n");
}
else
{
decode_packet(buffer, length);
}
gettimeofday(&end, NULL);
usec = (end.tv_sec - start.tv_sec)*1000000;
usec += end.tv_usec - start.tv_usec;
usec = (update_time*1000) - usec;
if(usec < 0)
break;
timeout.tv_sec = (int) usec/1000000;
timeout.tv_usec = (long) usec % 1000000;
}
}
int anonprint_process(struct anonflow *flow, void *internal_data, unsigned char *dev_pkt,
anon_pkthdr_t * pkt_head)
{
struct pcap_pkthdr pkthdr;
anonpacket decoded_pkt;
pkthdr.caplen = pkt_head->caplen;
pkthdr.len = pkt_head->wlen;
pkthdr.ts.tv_sec = pkt_head->ts.tv_sec;
pkthdr.ts.tv_usec = pkt_head->ts.tv_usec;
decode_packet(flow->link_type, flow->cap_length, &pkthdr, (unsigned char *)dev_pkt,
&decoded_pkt);
PrintPacket(stdout, &decoded_pkt, flow->link_type);
return 1;
}
static rx_spi_received_e readrx(uint8_t *packet)
{
if (!(NRF24L01_ReadReg(NRF24L01_07_STATUS) & BV(NRF24L01_07_STATUS_RX_DR))) {
uint32_t t = micros() - packet_timer;
if (t > rx_timeout) {
switch_channel();
packet_timer = micros();
}
return RX_SPI_RECEIVED_NONE;
}
packet_timer = micros();
NRF24L01_WriteReg(NRF24L01_07_STATUS, BV(NRF24L01_07_STATUS_RX_DR)); // clear the RX_DR flag
NRF24L01_ReadPayload(packet, V2X2_PAYLOAD_SIZE);
NRF24L01_FlushRx();
switch_channel();
return decode_packet(packet);
}
static int ffdec_push_packet(struct decoder_ctx *ctx, const AVPacket *pkt)
{
int ret;
const int flush = !pkt->size;
AVPacket avpkt = *pkt;
int got_frame;
TRACE(ctx, "received packet of size %d", pkt->size);
do {
ret = decode_packet(ctx, &avpkt, &got_frame);
if (ret < 0)
break;
avpkt.data += ret;
avpkt.size -= ret;
} while (avpkt.size > 0 || (flush && got_frame));
if (ret == 0 && flush && !got_frame)
return sxpi_decoding_queue_frame(ctx->decoding_ctx, NULL);
return ret;
}
int main(int argc, char *argv[])
{
const char *ifname = "xxx";
struct pollfd p;
int fd;
fd = create_tap(ifname);
if (fd < 0)
return 1;
if (inet_ifup(ifname) < 0) {
close(fd);
return 1;
}
memset(&p, 0, sizeof(p));
p.fd = fd;
p.events = POLLHUP | POLLIN;
while (1) {
unsigned char buf[2048];
int len;
len = poll(&p, 1, -1);
if (len < 0)
break;
if (len == 0)
continue;
len = read(fd, buf, sizeof(buf));
if (len < 0)
break;
decode_packet(buf, len);
}
return 0;
}
void readrx(void)
{
int chan;
uint16_t data[8];
if (!(NRF24L01_ReadReg(NRF24L01_07_STATUS) & BV(NRF24L01_07_RX_DR))) {
uint32_t t = lib_timers_gettimermicroseconds(packet_timer);
if (t > rx_timeout) {
if (boundprotocol != PROTO_NONE) {
if (++missed_packets > 500 && bind_phase == PHASE_JUST_BOUND) {
valid_packets = missed_packets = bad_packets = 0;
bind_phase = PHASE_LOST_BINDING;
prepare_to_bind();
}
} else switch_channel();
packet_timer = lib_timers_starttimer();
}
return;
}
packet_timer = lib_timers_starttimer();
NRF24L01_WriteReg(NRF24L01_07_STATUS, BV(NRF24L01_07_RX_DR));
NRF24L01_ReadPayload(packet, V2X2_PAYLOAD_SIZE);
NRF24L01_FlushRx();
switch_channel();
if (!decode_packet(packet, data))
return;
for (chan = 0; chan < 8; ++chan) {
// data = pwmRead(chan);
// if (data < 750 || data > 2250)
// data = 1500;
// convert from 1000-2000 range to -1 to 1 fixedpointnum range and low pass filter to remove glitches
lib_fp_lowpassfilter(&global.rxvalues[chan], ((fixedpointnum) data[chan] - 1500) * 131L, global.timesliver, FIXEDPOINTONEOVERONESIXTYITH, TIMESLIVEREXTRASHIFT);
}
// reset the failsafe timer
global.failsafetimer = lib_timers_starttimer();
}
krb5_error_code
krad_packet_decode_request(krb5_context ctx, const char *secret,
const krb5_data *buffer, krad_packet_iter_cb cb,
void *data, const krad_packet **duppkt,
krad_packet **reqpkt)
{
const krad_packet *tmp = NULL;
krb5_error_code retval;
retval = decode_packet(ctx, secret, buffer, reqpkt);
if (cb != NULL && retval == 0) {
for (tmp = (*cb)(data, FALSE); tmp != NULL; tmp = (*cb)(data, FALSE)) {
if (pkt_id_get(*reqpkt) == pkt_id_get(tmp))
break;
}
}
if (cb != NULL && (retval != 0 || tmp != NULL))
(*cb)(data, TRUE);
*duppkt = tmp;
return retval;
}
static void ssm_app_modem_work_fn(struct work_struct *work)
{
int sz, rc;
struct ssm_common_msg pkt;
struct ssm_driver *ssm;
ssm = container_of(work, struct ssm_driver, ipc_work);
mutex_lock(&ssm->mutex);
sz = smd_cur_packet_size(ssm->ch);
if ((sz < SSM_MSG_FIELD_LEN) || (sz > ATOM_MSG_LEN)) {
dev_dbg(ssm_drv->dev, "Garbled message size\n");
goto unlock;
}
if (smd_read_avail(ssm->ch) < sz) {
dev_err(ssm_drv->dev, "SMD error data in channel\n");
goto unlock;
}
if (smd_read(ssm->ch, ssm->smd_buffer, sz) != sz) {
dev_err(ssm_drv->dev, "Incomplete data\n");
goto unlock;
}
rc = decode_packet(ssm->smd_buffer, &pkt);
if (rc < 0) {
dev_err(ssm_drv->dev, "Corrupted header\n");
goto unlock;
}
process_message(pkt, ssm);
unlock:
mutex_unlock(&ssm->mutex);
}
krb5_error_code
krad_packet_decode_response(krb5_context ctx, const char *secret,
const krb5_data *buffer, krad_packet_iter_cb cb,
void *data, const krad_packet **reqpkt,
krad_packet **rsppkt)
{
uchar auth[AUTH_FIELD_SIZE];
const krad_packet *tmp = NULL;
krb5_error_code retval;
retval = decode_packet(ctx, secret, buffer, rsppkt);
if (cb != NULL && retval == 0) {
for (tmp = (*cb)(data, FALSE); tmp != NULL; tmp = (*cb)(data, FALSE)) {
if (pkt_id_get(*rsppkt) != pkt_id_get(tmp))
continue;
/* Response */
retval = auth_generate_response(ctx, secret, *rsppkt,
pkt_auth(tmp), auth);
if (retval != 0) {
krad_packet_free(*rsppkt);
break;
}
/* If the authenticator matches, then the response is valid. */
if (memcmp(pkt_auth(*rsppkt), auth, sizeof(auth)) == 0)
break;
}
}
if (cb != NULL && (retval != 0 || tmp != NULL))
(*cb)(data, TRUE);
*reqpkt = tmp;
return retval;
}
static
int ctf_metadata_decoder_packetized_file_stream_to_buf_with_mdec(
struct ctf_metadata_decoder *mdec, FILE *fp,
char **buf, int byte_order)
{
FILE *out_fp;
size_t size;
int ret = 0;
int tret;
size_t packet_index = 0;
out_fp = bt_open_memstream(buf, &size);
if (out_fp == NULL) {
BT_LOGE("Cannot open memory stream: %s: mdec-addr=%p",
strerror(errno), mdec);
goto error;
}
for (;;) {
if (feof(fp) != 0) {
break;
}
tret = decode_packet(mdec, fp, out_fp, byte_order);
if (tret) {
BT_LOGE("Cannot decode packet: index=%zu, mdec-addr=%p",
packet_index, mdec);
goto error;
}
packet_index++;
}
/* Make sure the whole string ends with a null character */
tret = fputc('\0', out_fp);
if (tret == EOF) {
BT_LOGE("Cannot append '\\0' to the decoded metadata buffer: "
"mdec-addr=%p", mdec);
goto error;
}
/* Close stream, which also flushes the buffer */
ret = bt_close_memstream(buf, &size, out_fp);
/*
* See fclose(3). Further access to out_fp after both success
* and error, even through another bt_close_memstream(), results
* in undefined behavior. Nullify out_fp to ensure we don't
* fclose it twice on error.
*/
out_fp = NULL;
if (ret < 0) {
BT_LOGE("Cannot close memory stream: %s: mdec-addr=%p",
strerror(errno), mdec);
goto error;
}
goto end;
error:
ret = -1;
if (out_fp) {
if (bt_close_memstream(buf, &size, out_fp)) {
BT_LOGE("Cannot close memory stream: %s: mdec-addr=%p",
strerror(errno), mdec);
}
}
if (*buf) {
free(*buf);
*buf = NULL;
}
end:
return ret;
}
int main (int argc, char **argv)
{
int ret = 0, got_frame;
if (argc != 4 && argc != 5) {
fprintf(stderr, "usage: %s [-refcount] input_file video_output_file audio_output_file\n"
"API example program to show how to read frames from an input file.\n"
"This program reads frames from a file, decodes them, and writes decoded\n"
"video frames to a rawvideo file named video_output_file, and decoded\n"
"audio frames to a rawaudio file named audio_output_file.\n\n"
"If the -refcount option is specified, the program use the\n"
"reference counting frame system which allows keeping a copy of\n"
"the data for longer than one decode call.\n"
"\n", argv[0]);
exit(1);
}
if (argc == 5 && !strcmp(argv[1], "-refcount")) {
refcount = 1;
argv++;
}
src_filename = argv[1];
video_dst_filename = argv[2];
audio_dst_filename = argv[3];
/* register all formats and codecs */
av_register_all();
/* open input file, and allocate format context */
if (avformat_open_input(&fmt_ctx, src_filename, NULL, NULL) < 0) {
fprintf(stderr, "Could not open source file %s\n", src_filename);
exit(1);
}
/* retrieve stream information */
if (avformat_find_stream_info(fmt_ctx, NULL) < 0) {
fprintf(stderr, "Could not find stream information\n");
exit(1);
}
if (open_codec_context(&video_stream_idx, fmt_ctx, AVMEDIA_TYPE_VIDEO) >= 0) {
video_stream = fmt_ctx->streams[video_stream_idx];
video_dec_ctx = video_stream->codec;
video_dst_file = fopen(video_dst_filename, "wb");
if (!video_dst_file) {
fprintf(stderr, "Could not open destination file %s\n", video_dst_filename);
ret = 1;
goto end;
}
/* allocate image where the decoded image will be put */
width = video_dec_ctx->width;
height = video_dec_ctx->height;
pix_fmt = video_dec_ctx->pix_fmt;
ret = av_image_alloc(video_dst_data, video_dst_linesize,
width, height, pix_fmt, 1);
if (ret < 0) {
fprintf(stderr, "Could not allocate raw video buffer\n");
goto end;
}
video_dst_bufsize = ret;
}
if (open_codec_context(&audio_stream_idx, fmt_ctx, AVMEDIA_TYPE_AUDIO) >= 0) {
audio_stream = fmt_ctx->streams[audio_stream_idx];
audio_dec_ctx = audio_stream->codec;
audio_dst_file = fopen(audio_dst_filename, "wb");
if (!audio_dst_file) {
fprintf(stderr, "Could not open destination file %s\n", audio_dst_filename);
ret = 1;
goto end;
}
}
/* dump input information to stderr */
av_dump_format(fmt_ctx, 0, src_filename, 0);
if (!audio_stream && !video_stream) {
fprintf(stderr, "Could not find audio or video stream in the input, aborting\n");
ret = 1;
goto end;
}
frame = av_frame_alloc();
if (!frame) {
fprintf(stderr, "Could not allocate frame\n");
ret = AVERROR(ENOMEM);
goto end;
}
/* initialize packet, set data to NULL, let the demuxer fill it */
av_init_packet(&pkt);
pkt.data = NULL;
pkt.size = 0;
if (video_stream)
printf("Demuxing video from file '%s' into '%s'\n", src_filename, video_dst_filename);
if (audio_stream)
printf("Demuxing audio from file '%s' into '%s'\n", src_filename, audio_dst_filename);
/* read frames from the file */
while (av_read_frame(fmt_ctx, &pkt) >= 0) {
AVPacket orig_pkt = pkt;
do {
ret = decode_packet(&got_frame, 0);
if (ret < 0)
break;
pkt.data += ret;
pkt.size -= ret;
} while (pkt.size > 0);
av_packet_unref(&orig_pkt);
}
/* flush cached frames */
pkt.data = NULL;
pkt.size = 0;
do {
decode_packet(&got_frame, 1);
} while (got_frame);
printf("Demuxing succeeded.\n");
if (video_stream) {
printf("Play the output video file with the command:\n"
"ffplay -f rawvideo -pix_fmt %s -video_size %dx%d %s\n",
av_get_pix_fmt_name(pix_fmt), width, height,
video_dst_filename);
}
if (audio_stream) {
enum AVSampleFormat sfmt = audio_dec_ctx->sample_fmt;
int n_channels = audio_dec_ctx->channels;
const char *fmt;
if (av_sample_fmt_is_planar(sfmt)) {
const char *packed = av_get_sample_fmt_name(sfmt);
printf("Warning: the sample format the decoder produced is planar "
"(%s). This example will output the first channel only.\n",
packed ? packed : "?");
sfmt = av_get_packed_sample_fmt(sfmt);
n_channels = 1;
}
if ((ret = get_format_from_sample_fmt(&fmt, sfmt)) < 0)
goto end;
printf("Play the output audio file with the command:\n"
"ffplay -f %s -ac %d -ar %d %s\n",
fmt, n_channels, audio_dec_ctx->sample_rate,
audio_dst_filename);
}
end:
avcodec_close(video_dec_ctx);
avcodec_close(audio_dec_ctx);
avformat_close_input(&fmt_ctx);
if (video_dst_file)
fclose(video_dst_file);
if (audio_dst_file)
fclose(audio_dst_file);
av_frame_free(&frame);
av_free(video_dst_data[0]);
return ret < 0;
}
void main_loop(void *) {
toggle_debug();
if (uart_available()) {
PORTD |= LED_YELLOW;
unsigned char ch = (unsigned char)uart_getch();
if (recv_ptr == 0) {
if (ch != 0xed) {
// not a sync byte
}
else {
buf[0] = ch;
recv_ptr = 1;
}
}
else if (recv_ptr == 1) {
if (ch > sizeof(buf) - 2) {
// not a proper packet
recv_ptr = 0;
recv_end = 0;
}
else {
buf[1] = ch;
recv_end = 2 + ch;
recv_ptr = 2;
}
}
else {
buf[recv_ptr] = ch;
++recv_ptr;
if (recv_ptr == recv_end) {
decode_packet();
recv_ptr = 0;
recv_end = 0;
}
}
PORTD &= ~LED_YELLOW;
}
unsigned short now = uread_timer();
unsigned short delta = now - prev;
prev = now;
// if this loop takes 10 milliseconds, we're already in trouble...
if (delta > 10000) {
delta = 10000;
}
//uart_force_out(((unsigned char *)&delta)[0]);
//uart_force_out(((unsigned char *)&delta)[1]);
unsigned char mask = 1;
bool change = false;
for (unsigned char i = 0; i != 6; ++i) {
if (targets[i] != counts[i]) {
stepphases[i] += delta;
if ((steps & mask) || (stepphases[i] >= steprates[i])) {
change = true;
if (!(steps & mask)) {
stepphases[i] -= steprates[i];
}
// avoid too much accumulation of phase -- this
// means a limit on slew rate
if (stepphases[i] > 40000) {
stepphases[i] = 40000;
}
steps = steps ^ mask;
if ((short)(targets[i] - counts[i]) > 0) {
directions |= mask;
if (!(steps & mask)) {
counts[i]++;
}
}
else {
directions &= ~mask;
if (!(steps & mask)) {
counts[i]--;
}
}
}
}
mask = mask << 1;
}
DIR_PORT = directions;
if (change) {
PORTD |= LED_RED;
}
else {
PORTD &= ~LED_RED;
}
blue_timeout += delta;
if (blue_timeout > 2000000) {
PORTD |= LED_BLUE;
first = true;
}
after(0, main_loop, 0);
STEP_PORT = steps;
}
int main (int argc, char **argv)
{
int ret = 0, got_frame;
if (argc != 3 && argc != 4) {
fprintf(stderr, "usage: %s [-refcount] input_file video_output_file audio_output_file\n"
"API example program to show how to read frames from an input file.\n"
"This program reads frames from a file, decodes them, and writes decoded\n"
"video frames to a rawvideo file named video_output_file, and decoded\n"
"audio frames to a rawaudio file named audio_output_file.\n\n"
"If the -refcount option is specified, the program use the\n"
"reference counting frame system which allows keeping a copy of\n"
"the data for longer than one decode call.\n"
"\n", argv[0]);
exit(1);
}
// if (argc == 4 && !strcmp(argv[1], "-refcount")) {
// refcount = 1;
// argv++;
// }
src_filename = argv[1];
video_dst_filename = argv[2];
/* register all formats and codecs */
avdevice_register_all();
av_register_all();
// const char* format_name = "avfoundation";
AVInputFormat* input_format = av_find_input_format("avfoundation");
printf("input_format: %p\n", input_format);
// printf("input_format: %s", input_format->long_name);
AVDictionary* open_options = NULL;
av_dict_set(&open_options, "pixel_format", "uyvy422", 0);
av_dict_set(&open_options, "framerate", "30.000030", 0);
av_dict_set(&open_options, "video_size", "1280x720", 0);
/* open input file, and allocate format context */
// if (avformat_open_input(&fmt_ctx, src_filename, NULL, NULL) < 0) {
if (avformat_open_input(&fmt_ctx, src_filename, input_format, &open_options) < 0) {
fprintf(stderr, "Could not open source file %s\n", src_filename);
exit(1);
}
printf("fmt_ctx: %p\n", fmt_ctx);
video_stream = fmt_ctx->streams[0];
printf("video_stream: %p\n", video_stream);
video_dec_ctx = video_stream->codec;
printf("video_dec_ctx: %p\n", video_dec_ctx);
/* allocate image where the decoded image will be put */
width = video_dec_ctx->width;
height = video_dec_ctx->height;
pix_fmt = video_dec_ctx->pix_fmt;
printf("width: %d\n", width);
printf("height: %d\n", height);
printf("pix_fmt: %d\n", pix_fmt);
/* retrieve stream information */
if (avformat_find_stream_info(fmt_ctx, NULL) < 0) {
fprintf(stderr, "Could not find stream information\n");
exit(1);
}
if (open_codec_context(&video_stream_idx, fmt_ctx, AVMEDIA_TYPE_VIDEO) >= 0) {
video_stream = fmt_ctx->streams[video_stream_idx];
video_dec_ctx = video_stream->codec;
video_dst_file = fopen(video_dst_filename, "wb");
if (!video_dst_file) {
fprintf(stderr, "Could not open destination file %s\n", video_dst_filename);
ret = 1;
goto end;
}
/* allocate image where the decoded image will be put */
width = video_dec_ctx->width;
height = video_dec_ctx->height;
pix_fmt = video_dec_ctx->pix_fmt;
printf("width: %d\n", width);
printf("height: %d\n", height);
printf("pix_fmt: %d\n", pix_fmt);
ret = av_image_alloc(video_dst_data, video_dst_linesize,
width, height, pix_fmt, 1);
if (ret < 0) {
fprintf(stderr, "Could not allocate raw video buffer\n");
goto end;
}
video_dst_bufsize = ret;
}
/* dump input information to stderr */
av_dump_format(fmt_ctx, 0, src_filename, 0);
if (!video_stream) {
fprintf(stderr, "Could not find video stream in the input, aborting\n");
ret = 1;
goto end;
}
frame = av_frame_alloc();
if (!frame) {
fprintf(stderr, "Could not allocate frame\n");
ret = AVERROR(ENOMEM);
goto end;
}
/* initialize packet, set data to NULL, let the demuxer fill it */
av_init_packet(&pkt);
pkt.data = NULL;
pkt.size = 0;
if (video_stream)
printf("Demuxing video from file '%s' into '%s'\n", src_filename, video_dst_filename);
/* read frames from the file */
int frame_index = 0;
while (av_read_frame(fmt_ctx, &pkt) >= 0) {
AVPacket orig_pkt = pkt;
do {
ret = decode_packet(&got_frame, 0);
if (ret < 0)
break;
pkt.data += ret;
pkt.size -= ret;
} while (pkt.size > 0);
av_free_packet(&orig_pkt);
frame_index++;
if (frame_index > 5) {
break;
}
}
/* flush cached frames */
pkt.data = NULL;
pkt.size = 0;
do {
decode_packet(&got_frame, 1);
} while (got_frame);
printf("Demuxing succeeded.\n");
if (video_stream) {
printf("Play the output video file with the command:\n"
"ffplay -f rawvideo -pix_fmt %s -video_size %dx%d %s\n",
av_get_pix_fmt_name(pix_fmt), width, height,
video_dst_filename);
}
end:
avcodec_close(video_dec_ctx);
avformat_close_input(&fmt_ctx);
if (video_dst_file)
fclose(video_dst_file);
av_frame_free(&frame);
av_free(video_dst_data[0]);
return ret < 0;
}
/* this is the codec entry point */
enum codec_status codec_main(void)
{
uint32_t elapsedtime;
int retval;
asf_waveformatex_t wfx; /* Holds the stream properties */
size_t resume_offset;
int res; /* Return values from asf_read_packet() and decode_packet() */
uint8_t* audiobuf; /* Pointer to the payload of one wma pro packet */
int audiobufsize; /* Payload size */
int packetlength = 0; /* Logical packet size (minus the header size) */
int outlen = 0; /* Number of bytes written to the output buffer */
int pktcnt = 0; /* Count of the packets played */
uint8_t *data; /* Pointer to decoder input buffer */
int size; /* Size of the input frame to the decoder */
/* Generic codec initialisation */
ci->configure(DSP_SET_SAMPLE_DEPTH, WMAPRO_DSP_SAMPLE_DEPTH);
next_track:
/* Wait for the metadata to be read */
while (!*ci->taginfo_ready && !ci->stop_codec)
ci->sleep(1);
retval = CODEC_OK;
/* Remember the resume position */
resume_offset = ci->id3->offset;
restart_track:
if (codec_init()) {
LOGF("(WMA PRO) Error: Error initialising codec\n");
retval = CODEC_ERROR;
goto done;
}
/* Copy the format metadata we've stored in the id3 TOC field. This
saves us from parsing it again here. */
memcpy(&wfx, ci->id3->toc, sizeof(wfx));
ci->configure(DSP_SWITCH_FREQUENCY, wfx.rate);
ci->configure(DSP_SET_STEREO_MODE, wfx.channels == 1 ?
STEREO_MONO : STEREO_NONINTERLEAVED);
codec_set_replaygain(ci->id3);
if (decode_init(&wfx) < 0) {
LOGF("(WMA PRO) Error: Unsupported or corrupt file\n");
retval = CODEC_ERROR;
goto done;
}
/* Now advance the file position to the first frame */
ci->seek_buffer(ci->id3->first_frame_offset);
elapsedtime = 0;
resume_offset = 0;
/* The main decoding loop */
while (pktcnt < wfx.numpackets)
{
ci->yield();
if (ci->stop_codec || ci->new_track) {
goto done;
}
/* Deal with any pending seek requests */
if (ci->seek_time) {
if (ci->seek_time == 1) {
ci->seek_complete();
goto restart_track; /* Pretend you never saw this... */
}
elapsedtime = asf_seek(ci->seek_time, &wfx);
if (elapsedtime < 1) {
ci->seek_complete();
goto next_track;
}
ci->set_elapsed(elapsedtime);
ci->seek_complete();
}
res = asf_read_packet(&audiobuf, &audiobufsize, &packetlength, &wfx);
if (res < 0) {
LOGF("(WMA PRO) Warning: asf_read_packet returned %d", res);
goto done;
} else {
data = audiobuf;
size = audiobufsize;
pktcnt++;
/* We now loop on the packet, decoding and outputting the subframes
* one-by-one. For more information about how wma pro structures its
* audio frames, see libwmapro/wmaprodec.c */
while(size > 0)
{
res = decode_packet(&wfx, dec, &outlen, data, size);
if(res < 0) {
LOGF("(WMA PRO) Error: decode_packet returned %d", res);
goto done;
}
data += res;
size -= res;
if(outlen) {
ci->yield ();
outlen /= (wfx.channels);
ci->pcmbuf_insert(dec[0], dec[1], outlen );
elapsedtime += outlen*10/(wfx.rate/100);
ci->set_elapsed(elapsedtime);
ci->yield ();
}
}
}
/* Advance to the next logical packet */
ci->advance_buffer(packetlength);
}
retval = CODEC_OK;
done:
if (ci->request_next_track())
goto next_track;
return retval;
}
int main(int argc, const char *argv[]) {
int ret = 0, got_frame, got_output;
int video_stream_idx = -1;
int video_dst_bufsize;
const char *src_filename;
const char *dst_filename;
FILE *dst_file = NULL;
AVCodec *codec_enc = NULL;
AVFormatContext *fmt_ctx = NULL;
AVStream *video_stream = NULL;
AVCodecContext *video_dec_ctx = NULL;
AVCodecContext *video_enc_ctx = NULL;
AVFrame *frame = NULL;
AVPacket pkt_dec, pkt_enc;
uint8_t *video_dst_data[4] = {NULL};
int video_dst_linesize[4];
if (argc != 3) {
printf("Usage: %s <in_file> <out_file>\n", argv[0]);
exit(1);
}
av_register_all();
av_log_set_level(AV_LOG_DEBUG);
src_filename = argv[1];
dst_filename = argv[2];
codec_enc = avcodec_find_encoder(AV_CODEC_ID_JPEG2000);
if (!codec_enc) {
fprintf(stderr, "Codec not found\n");
exit(1);
}
video_enc_ctx = avcodec_alloc_context3(codec_enc);
if (!video_enc_ctx) {
fprintf(stderr, "Could not allocate video codec context\n");
exit(1);
}
// j2kenc_init(video_enc_ctx);
/* open input file, and allocate format context */
if (avformat_open_input(&fmt_ctx, src_filename, NULL, NULL) < 0) {
fprintf(stderr, "Could not open source file %s\n", src_filename);
exit(1);
}
/* retrieve stream information */
if (avformat_find_stream_info(fmt_ctx, NULL) < 0) {
fprintf(stderr, "Could not find stream information\n");
exit(1);
}
if (open_codec_context(&video_stream_idx, fmt_ctx, AVMEDIA_TYPE_VIDEO, src_filename) >= 0) {
video_stream = fmt_ctx->streams[video_stream_idx];
video_dec_ctx = video_stream->codec;
video_enc_ctx->width = video_dec_ctx->width;
video_enc_ctx->height = video_dec_ctx->height;
video_enc_ctx->pix_fmt = video_dec_ctx->pix_fmt;
// make ffmpeg not complain about j2k being experiemntal
video_enc_ctx->strict_std_compliance = -2;
// printf("About to open encoder\n");
if (avcodec_open2(video_enc_ctx, codec_enc, NULL) < 0) {
fprintf(stderr, "Could not open codec\n");
exit(1);
}
dst_file = fopen(dst_filename, "wb");
if (!dst_file) {
fprintf(stderr, "Could not open destination file %s\n", dst_filename);
ret = 1;
goto end;
}
/* allocate image where the decoded image will be put */
ret = av_image_alloc(video_dst_data, video_dst_linesize,
video_dec_ctx->width, video_dec_ctx->height,
video_dec_ctx->pix_fmt, 1);
if (ret < 0) {
fprintf(stderr, "Could not allocate raw video buffer\n");
goto end;
}
video_dst_bufsize = ret;
}
/* dump input information to stderr */
av_dump_format(fmt_ctx, 0, src_filename, 0);
frame = av_frame_alloc();
if (!frame) {
fprintf(stderr, "Could not allocate frame\n");
ret = AVERROR(ENOMEM);
goto end;
}
/* initialize packet, set data to NULL, let the demuxer fill it */
av_init_packet(&pkt_dec);
pkt_dec.data = NULL;
pkt_dec.size = 0;
if (video_stream)
printf("Demuxing video from file '%s' into '%s'\n", src_filename, dst_filename);
/* read frames from the file */
while (av_read_frame(fmt_ctx, &pkt_dec) >= 0) {
// AVPacket orig_pkt = pkt;
do {
ret = decode_packet(&got_frame, 0, &pkt_dec, video_dec_ctx, frame);
if (ret < 0)
break;
pkt_dec.data += ret;
pkt_dec.size -= ret;
} while (pkt_dec.size > 0);
// av_free_packet(&orig_pkt);
}
/* flush cached frames */
pkt_dec.data = NULL;
pkt_dec.size = 0;
do {
decode_packet(&got_frame, 1, &pkt_dec, video_dec_ctx, frame);
if (got_frame) {
// DO SOME ENCODING HERE
av_init_packet(&pkt_enc);
pkt_enc.data = NULL;
pkt_enc.size = 0;
ret = avcodec_encode_video2(video_enc_ctx, &pkt_enc, frame, &got_output);
if (ret < 0) {
fprintf(stderr, "Error encoding frame\n");
goto end;
}
if (got_output) {
printf("Write frame (size=%5d)\n", pkt_enc.size);
fwrite(pkt_enc.data, 1, pkt_enc.size, dst_file);
}
}
} while (got_frame);
printf("Demuxing succeeded.\n");
end:
av_free_packet(&pkt_enc);
av_free_packet(&pkt_dec);
if (video_dec_ctx)
avcodec_close(video_dec_ctx);
if (video_enc_ctx)
avcodec_close(video_enc_ctx);
// if (codec_enc)
// av_free(codec_enc);
avformat_close_input(&fmt_ctx);
if (dst_file)
fclose(dst_file);
else
av_frame_free(&frame);
av_free(video_dst_data[0]);
return ret < 0;
}
int main (int argc, char **argv)
{
double v1 = 1 / (29.97 * 90000);
double v2 = 1 / 29.97 * 90000;
AVInputFormat* fmtInput ;
char deviceBuffer[256] ={0};
int ret = 0, got_frame;
//if (argc != 4) {
// fprintf(stderr, "usage: %s input_file video_output_file audio_output_file\n"
// "API example program to show how to read frames from an input file.\n"
// "This program reads frames from a file, decodes them, and writes decoded\n"
// "video frames to a rawvideo file named video_output_file, and decoded\n"
// "audio frames to a rawaudio file named audio_output_file.\n"
// "\n", argv[0]);
// exit(1);
//}
//src_filename = argv[1];
//video_dst_filename = argv[2];
//audio_dst_filename = argv[3];
//src_filename = "rtsp://*****:*****@192.168.0.6/ch1/main/av_stream"; //"d:\\wildlife.wmv";
//src_filename = "video=Integrated Camera";
//src_filename = "d:\\pgm\\2.jpg";
src_filename = "dummy";
video_dst_filename = "d:\\pgm\\wildlife.pgm";
audio_dst_filename = "d:\\pgm\\wildlife.pcm";
/* register all formats and codecs */
av_register_all();
avdevice_register_all();
avformat_network_init();
fmtInput = av_find_input_format("dshow");
/* open input file, and allocate format context */
if (avformat_open_input(&fmt_ctx, src_filename, fmtInput, NULL) < 0) {
//if (avformat_open_input(&fmt_ctx, src_filename, NULL, NULL) < 0) {
fprintf(stderr, "Could not open source file %s\n", src_filename);
exit(1);
}
/* retrieve stream information */
if (avformat_find_stream_info(fmt_ctx, NULL) < 0) {
fprintf(stderr, "Could not find stream information\n");
exit(1);
}
if (open_codec_context(&video_stream_idx, fmt_ctx, AVMEDIA_TYPE_VIDEO) >= 0) {
video_stream = fmt_ctx->streams[video_stream_idx];
video_dec_ctx = video_stream->codec;
video_dst_file = fopen(video_dst_filename, "wb");
if (!video_dst_file) {
fprintf(stderr, "Could not open destination file %s\n", video_dst_filename);
ret = 1;
goto end;
}
/* allocate image where the decoded image will be put */
ret = av_image_alloc(video_dst_data, video_dst_linesize,
video_dec_ctx->width, video_dec_ctx->height,
video_dec_ctx->pix_fmt, 1);
if (ret < 0) {
fprintf(stderr, "Could not allocate raw video buffer\n");
goto end;
}
video_dst_bufsize = ret;
}
if (open_codec_context(&audio_stream_idx, fmt_ctx, AVMEDIA_TYPE_AUDIO) >= 0) {
int nb_planes;
audio_stream = fmt_ctx->streams[audio_stream_idx];
audio_dec_ctx = audio_stream->codec;
audio_dst_file = fopen(audio_dst_filename, "wb");
if (!audio_dst_file) {
fprintf(stderr, "Could not open destination file %s\n", video_dst_filename);
ret = 1;
goto end;
}
nb_planes = av_sample_fmt_is_planar(audio_dec_ctx->sample_fmt) ?
audio_dec_ctx->channels : 1;
audio_dst_data = av_mallocz(sizeof(uint8_t *) * nb_planes);
if (!audio_dst_data) {
fprintf(stderr, "Could not allocate audio data buffers\n");
ret = AVERROR(ENOMEM);
goto end;
}
}
/* dump input information to stderr */
av_dump_format(fmt_ctx, 0, src_filename, 0);
if (!audio_stream && !video_stream) {
fprintf(stderr, "Could not find audio or video stream in the input, aborting\n");
ret = 1;
goto end;
}
frame = avcodec_alloc_frame();
if (!frame) {
fprintf(stderr, "Could not allocate frame\n");
ret = AVERROR(ENOMEM);
goto end;
}
/* initialize packet, set data to NULL, let the demuxer fill it */
av_init_packet(&pkt);
pkt.data = NULL;
pkt.size = 0;
if (video_stream)
printf("Demuxing video from file '%s' into '%s'\n", src_filename, video_dst_filename);
if (audio_stream)
printf("Demuxing audio from file '%s' into '%s'\n", src_filename, audio_dst_filename);
/* read frames from the file */
while (av_read_frame(fmt_ctx, &pkt) >= 0) {
decode_packet(&got_frame, 0);
av_free_packet(&pkt);
}
/* flush cached frames */
pkt.data = NULL;
pkt.size = 0;
do {
decode_packet(&got_frame, 1);
} while (got_frame);
printf("Demuxing succeeded.\n");
if (video_stream) {
printf("Play the output video file with the command:\n"
"ffplay -f rawvideo -pix_fmt %s -video_size %dx%d %s\n",
av_get_pix_fmt_name(video_dec_ctx->pix_fmt), video_dec_ctx->width, video_dec_ctx->height,
video_dst_filename);
}
if (audio_stream) {
const char *fmt;
if ((ret = get_format_from_sample_fmt(&fmt, audio_dec_ctx->sample_fmt)) < 0)
goto end;
printf("Play the output audio file with the command:\n"
"ffplay -f %s -ac %d -ar %d %s\n",
fmt, audio_dec_ctx->channels, audio_dec_ctx->sample_rate,
audio_dst_filename);
}
end:
if (video_dec_ctx)
avcodec_close(video_dec_ctx);
if (audio_dec_ctx)
avcodec_close(audio_dec_ctx);
avformat_close_input(&fmt_ctx);
if (video_dst_file)
fclose(video_dst_file);
if (audio_dst_file)
fclose(audio_dst_file);
av_free(frame);
av_free(video_dst_data[0]);
av_free(audio_dst_data);
return ret < 0;
}
int main(int argc, char **argv)
{
int ret = 0, got_frame;
if (argc != 2) {
fprintf(stderr, "Usage: %s <video>\n", argv[0]);
exit(1);
}
src_filename = argv[1];
av_register_all();
if (avformat_open_input(&fmt_ctx, src_filename, NULL, NULL) < 0) {
fprintf(stderr, "Could not open source file %s\n", src_filename);
exit(1);
}
if (avformat_find_stream_info(fmt_ctx, NULL) < 0) {
fprintf(stderr, "Could not find stream information\n");
exit(1);
}
if (open_codec_context(&video_stream_idx, fmt_ctx, AVMEDIA_TYPE_VIDEO) >= 0) {
video_stream = fmt_ctx->streams[video_stream_idx];
video_dec_ctx = video_stream->codec;
}
//av_dump_format(fmt_ctx, 0, src_filename, 0);
if (!video_stream) {
fprintf(stderr, "Could not find video stream in the input, aborting\n");
ret = 1;
goto end;
}
frame = av_frame_alloc();
if (!frame) {
fprintf(stderr, "Could not allocate frame\n");
ret = AVERROR(ENOMEM);
goto end;
}
//printf("framenum,source,blockw,blockh,srcx,srcy,dstx,dsty,flags\n");
/* initialize packet, set data to NULL, let the demuxer fill it */
av_init_packet(&pkt);
pkt.data = NULL;
pkt.size = 0;
/* print the csv header */
printf(";Bildtyp: ;Eingangsbitrate: ;Kodierte Bildgröße: ;Zeitstempel des Bildes: ;Aktuelles Bild: ;Anzeigedauer des Bildes: ;Bisherige Spielzeit: ;Quelldateiname: ;Decoderbildrate: ;Decoder: ;Filmbildrate:\n");
/* read frames from the file */
while (av_read_frame(fmt_ctx, &pkt) >= 0) {
AVPacket orig_pkt = pkt;
do {
ret = decode_packet(&got_frame, 0);
if (ret < 0)
break;
pkt.data += ret;
pkt.size -= ret;
} while (pkt.size > 0);
av_free_packet(&orig_pkt);
}
/* flush cached frames */
pkt.data = NULL;
pkt.size = 0;
do {
decode_packet(&got_frame, 1);
} while (got_frame);
end:
avcodec_close(video_dec_ctx);
avformat_close_input(&fmt_ctx);
av_frame_free(&frame);
return ret < 0;
}
static void log_loop(tUartHandle hUart)
{
double last, curr;
int count = 0;
uint8_t msg[1000];
last = hires_time();
do
{
double waited;
uint8_t receive;
int got = 1;
UartRead(hUart, &receive, &got);
curr = hires_time();
waited = curr - last;
last = curr;
if (got == 0)
continue; // should never happen
if (waited > 0.01)
{
if (count)
{
dump(msg, count);
printf(" (stale bytes)");
count = 0;
}
printf("\n"); // block separator, for nicer readability
}
msg[count] = receive;
count++;
if (count >= 4) // minimum packet length
{
int i;
// CRC candidate
uint16_t cand = msg[count-2] + msg[count-1] * 256; // little endian
// search for size + CRC match, assume packet end if both matches
for (i=0; i<count-2; i++)
{
int packetlen = msg[i+1] & 0x7F; // from msg candidate
if (packetlen == count-i-4 && crc16(msg+i, count-2-i) == cand)
{
if (i>0)
{ // dump heading garbage
dump(msg, i);
printf(" Garbage (possible collision)\n");
}
{
// print timestamp
char *timeline;
#ifdef WIN32
struct _timeb timebuffer;
_ftime( &timebuffer );
#else
struct timeb timebuffer;
ftime( &timebuffer );
#endif
timeline = ctime( & ( timebuffer.time ) );
printf( "%.8s.%03hu ", &timeline[11], timebuffer.millitm);
}
dump (msg+i, count-i); // dump the packet
decode_packet(msg+i, count-i);
printf("\n");
//out_rcv_packet(&out, msg+i, count-i); // pass to emulation
count = 0;
} // if crc match
} // for i
} // if (count > 2)
} while(1);
}
int main (int argc, char **argv)
{
int ret = 0;
const char *src_filename = NULL;
const char *dst_filename = NULL;
char* format = NULL;
char* codec = NULL;
if (argc != 5 && argc != 3) {
fprintf(stderr, "usage: %s input_file output_file [format codec]\n"
"API example program to show how to read frames from an input file.\n"
"This program reads frames from a file, decodes them, and writes decoded\n"
"frames to a rawvideo/rawaudio file named output_file.\n"
"Optionally format and codec can be specified.\n\n", argv[0]);
exit(1);
}
src_filename = argv[1];
dst_filename = argv[2];
if (argc == 5) {
format = argv[3];
codec = argv[4];
}
/* log all debug messages */
av_log_set_level(AV_LOG_DEBUG);
/* register all formats and codecs */
av_register_all();
#ifdef __AFL_HAVE_MANUAL_CONTROL
while (__AFL_LOOP(1000))
#endif
{
AVFormatContext *fmt_ctx = NULL;
AVInputFormat *fmt = NULL;
AVCodecContext *dec_ctx = NULL;
FILE *dst_file = NULL;
AVFrame *frame = NULL;
int got_frame = 0;
int frame_count = 0;
AVPacket pkt = { 0 };
AVDictionary *opts = NULL;
ret = 0;
width = 0;
height = 0;
pix_fmt = AV_PIX_FMT_NONE;
video_dst_bufsize = 0;
memset(video_dst_data, 0, sizeof(video_dst_data));
memset(video_dst_linesize, 0, sizeof(video_dst_linesize));
/* set the whitelists for formats and codecs */
if (av_dict_set(&opts, "codec_whitelist", codec, 0) < 0) {
fprintf(stderr, "Could not set codec_whitelist.\n");
ret = 1;
goto end;
}
if (av_dict_set(&opts, "format_whitelist", format, 0) < 0) {
fprintf(stderr, "Could not set format_whitelist.\n");
ret = 1;
goto end;
}
if (format) {
fmt = av_find_input_format(format);
if (!fmt) {
fprintf(stderr, "Could not find input format %s\n", format);
ret = 1;
goto end;
}
}
/* open input file, and allocate format context */
if (avformat_open_input(&fmt_ctx, src_filename, fmt, &opts) < 0) {
fprintf(stderr, "Could not open source file %s\n", src_filename);
ret = 1;
goto end;
}
/* retrieve stream information */
if (avformat_find_stream_info(fmt_ctx, NULL) < 0) {
fprintf(stderr, "Could not find stream information\n");
}
/* find stream with specified codec */
if (open_codec_context(&dec_ctx, fmt_ctx, codec) < 0) {
fprintf(stderr, "Could not open any stream in input file '%s'\n",
src_filename);
ret = 1;
goto end;
}
/* open output file */
dst_file = fopen(dst_filename, "wb");
if (!dst_file) {
fprintf(stderr, "Could not open destination file %s\n", dst_filename);
ret = 1;
goto end;
}
if (dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO) {
/* allocate image where the decoded image will be put */
width = dec_ctx->width;
height = dec_ctx->height;
pix_fmt = dec_ctx->pix_fmt;
video_dst_bufsize = av_image_alloc(video_dst_data, video_dst_linesize,
width, height, pix_fmt, 1);
if (video_dst_bufsize < 0) {
fprintf(stderr, "Could not allocate raw video buffer\n");
ret = 1;
goto end;
}
}
/* dump input information to stderr */
av_dump_format(fmt_ctx, 0, src_filename, 0);
/* allocate frame */
frame = av_frame_alloc();
if (!frame) {
fprintf(stderr, "Could not allocate frame\n");
ret = 1;
goto end;
}
printf("Demuxing from file '%s' into '%s'\n", src_filename, dst_filename);
/* read frames from the file */
while (av_read_frame(fmt_ctx, &pkt) >= 0) {
do {
int decoded = decode_packet(dec_ctx, dst_file, frame, &got_frame, &frame_count, &pkt);
if (decoded < 0)
break;
/* increase data pointer and decrease size of remaining data buffer */
pkt.data += decoded;
pkt.size -= decoded;
} while (pkt.size > 0);
av_free_packet(&pkt);
}
printf("Flushing cached frames.\n");
pkt.data = NULL;
pkt.size = 0;
do {
decode_packet(dec_ctx, dst_file, frame, &got_frame, &frame_count, &pkt);
} while (got_frame);
printf("Demuxing done.\n");
end:
/* free allocated memory */
av_dict_free(&opts);
avcodec_close(dec_ctx);
avformat_close_input(&fmt_ctx);
if (dst_file)
fclose(dst_file);
av_frame_free(&frame);
av_free(video_dst_data[0]);
}
return ret;
}
static int netcam_read_rtsp_image(netcam_context_ptr netcam)
{
if (netcam->rtsp == NULL) {
if (rtsp_connect(netcam) < 0) {
return -1;
}
}
AVCodecContext *cc = netcam->rtsp->codec_context;
AVFormatContext *fc = netcam->rtsp->format_context;
netcam_buff_ptr buffer;
/* Point to our working buffer. */
buffer = netcam->receiving;
buffer->used = 0;
AVFrame *frame = avcodec_alloc_frame();
AVPacket packet;
av_init_packet(&packet);
packet.data = NULL;
packet.size = 0;
int size_decoded = 0;
static int usual_size_decoded = 0;
while (size_decoded == 0 && av_read_frame(fc, &packet) >= 0) {
if(packet.stream_index != netcam->rtsp->video_stream_index) {
// not our packet, skip
continue;
}
size_decoded = decode_packet(&packet, buffer, frame, cc);
}
if (size_decoded == 0) {
// something went wrong, end of stream?
MOTION_LOG(ERR, TYPE_NETCAM, SHOW_ERRNO, "%s: invalid frame!");
return -1;
}
if (size_decoded != usual_size_decoded) {
MOTION_LOG(WRN, TYPE_NETCAM, SHOW_ERRNO, "%s: unusual frame size of %d!", size_decoded);
usual_size_decoded = size_decoded;
}
// at this point, we are finished with the packet and frame, so free them.
av_free_packet(&packet);
av_free(frame);
struct timeval curtime;
if (gettimeofday(&curtime, NULL) < 0) {
MOTION_LOG(WRN, TYPE_NETCAM, SHOW_ERRNO, "%s: gettimeofday");
}
netcam->receiving->image_time = curtime;
/*
* Calculate our "running average" time for this netcam's
* frame transmissions (except for the first time).
* Note that the average frame time is held in microseconds.
*/
if (netcam->last_image.tv_sec) {
netcam->av_frame_time = ((9.0 * netcam->av_frame_time) + 1000000.0 *
(curtime.tv_sec - netcam->last_image.tv_sec) +
(curtime.tv_usec- netcam->last_image.tv_usec)) / 10.0;
MOTION_LOG(DBG, TYPE_NETCAM, NO_ERRNO, "%s: Calculated frame time %f",
netcam->av_frame_time);
}
netcam->last_image = curtime;
netcam_buff *xchg;
/*
* read is complete - set the current 'receiving' buffer atomically
* as 'latest', and make the buffer previously in 'latest' become
* the new 'receiving'.
*/
pthread_mutex_lock(&netcam->mutex);
xchg = netcam->latest;
netcam->latest = netcam->receiving;
netcam->receiving = xchg;
netcam->imgcnt++;
/*
* We have a new frame ready. We send a signal so that
* any thread (e.g. the motion main loop) waiting for the
* next frame to become available may proceed.
*/
pthread_cond_signal(&netcam->pic_ready);
pthread_mutex_unlock(&netcam->mutex);
return 0;
}
bool mp_decode_next(struct mp_decode *d)
{
bool eof = d->m->eof;
int got_frame;
int ret;
d->frame_ready = false;
if (!eof && !d->packets.size)
return true;
while (!d->frame_ready) {
if (!d->packet_pending) {
if (!d->packets.size) {
if (eof) {
d->pkt.data = NULL;
d->pkt.size = 0;
} else {
return true;
}
} else {
circlebuf_pop_front(&d->packets, &d->orig_pkt,
sizeof(d->orig_pkt));
d->pkt = d->orig_pkt;
d->packet_pending = true;
}
}
ret = decode_packet(d, &got_frame);
if (!got_frame && ret == 0) {
d->eof = true;
return true;
}
if (ret < 0) {
#ifdef DETAILED_DEBUG_INFO
blog(LOG_DEBUG, "MP: decode failed: %s",
av_err2str(ret));
#endif
if (d->packet_pending) {
av_packet_unref(&d->orig_pkt);
av_init_packet(&d->orig_pkt);
av_init_packet(&d->pkt);
d->packet_pending = false;
}
return true;
}
d->frame_ready = !!got_frame;
if (d->packet_pending) {
if (d->pkt.size) {
d->pkt.data += ret;
d->pkt.size -= ret;
}
if (d->pkt.size <= 0) {
av_packet_unref(&d->orig_pkt);
av_init_packet(&d->orig_pkt);
av_init_packet(&d->pkt);
d->packet_pending = false;
}
}
}
if (d->frame_ready) {
int64_t last_pts = d->frame_pts;
if (d->frame->best_effort_timestamp == AV_NOPTS_VALUE)
d->frame_pts = d->next_pts;
else
d->frame_pts = av_rescale_q(
d->frame->best_effort_timestamp,
d->stream->time_base,
(AVRational){1, 1000000000});
int64_t duration = d->frame->pkt_duration;
if (!duration)
duration = get_estimated_duration(d, last_pts);
else
duration = av_rescale_q(duration,
d->stream->time_base,
(AVRational){1, 1000000000});
d->last_duration = duration;
d->next_pts = d->frame_pts + duration;
}
return true;
}
int main (int argc, char **argv)
{
int ret = 0, got_frame;
if (argc != 4) {
fprintf(stderr, "usage: %s input_file video_output_file audio_output_file\n"
"API example program to show how to read frames from an input file.\n"
"This program reads frames from a file, decodes them, and writes decoded\n"
"video frames to a rawvideo file named video_output_file, and decoded\n"
"audio frames to a rawaudio file named audio_output_file.\n"
"\n", argv[0]);
exit(1);
}
src_filename = argv[1];
video_dst_filename = argv[2];
audio_dst_filename = argv[3];
/* register all formats and codecs */
av_register_all();
/* open input file, and allocate format context */
if (avformat_open_input(&fmt_ctx, src_filename, NULL, NULL) < 0) {
fprintf(stderr, "Could not open source file %s\n", src_filename);
exit(1);
}
/* retrieve stream information */
if (avformat_find_stream_info(fmt_ctx, NULL) < 0) {
fprintf(stderr, "Could not find stream information\n");
exit(1);
}
if (open_codec_context(&video_stream_idx, fmt_ctx, AVMEDIA_TYPE_VIDEO) >= 0) {
video_stream = fmt_ctx->streams[video_stream_idx];
video_dec_ctx = video_stream->codec;
video_dst_file = fopen(video_dst_filename, "wb");
if (!video_dst_file) {
fprintf(stderr, "Could not open destination file %s\n", video_dst_filename);
ret = 1;
goto end;
}
/* allocate image where the decoded image will be put */
ret = av_image_alloc(video_dst_data, video_dst_linesize,
video_dec_ctx->width, video_dec_ctx->height,
video_dec_ctx->pix_fmt, 1);
if (ret < 0) {
fprintf(stderr, "Could not allocate raw video buffer\n");
goto end;
}
video_dst_bufsize = ret;
}
if (open_codec_context(&audio_stream_idx, fmt_ctx, AVMEDIA_TYPE_AUDIO) >= 0) {
int nb_planes;
audio_stream = fmt_ctx->streams[audio_stream_idx];
audio_dec_ctx = audio_stream->codec;
audio_dst_file = fopen(audio_dst_filename, "wb");
if (!audio_dst_file) {
fprintf(stderr, "Could not open destination file %s\n", video_dst_filename);
ret = 1;
goto end;
}
nb_planes = av_sample_fmt_is_planar(audio_dec_ctx->sample_fmt) ? audio_dec_ctx->channels : 1;
audio_dst_data = (uint8_t**)av_mallocz(sizeof(uint8_t *) * nb_planes);
if (!audio_dst_data) {
fprintf(stderr, "Could not allocate audio data buffers\n");
ret = AVERROR(ENOMEM);
goto end;
}
}
/* dump input information to stderr */
av_dump_format(fmt_ctx, 0, src_filename, 0);
if (!audio_stream && !video_stream) {
fprintf(stderr, "Could not find audio or video stream in the input, aborting\n");
ret = 1;
goto end;
}
frame = avcodec_alloc_frame();
if (!frame) {
fprintf(stderr, "Could not allocate frame\n");
ret = AVERROR(ENOMEM);
goto end;
}
/* initialize packet, set data to NULL, let the demuxer fill it */
av_init_packet(&pkt);
pkt.data = NULL;
pkt.size = 0;
if (video_stream)
printf("Demuxing video from file '%s' into '%s'\n", src_filename, video_dst_filename);
if (audio_stream)
printf("Demuxing audio from file '%s' into '%s'\n", src_filename, audio_dst_filename);
/* read frames from the file */
while (av_read_frame(fmt_ctx, &pkt) >= 0) {
//decode_packet(&got_frame, 0);
if (audio_stream_idx == pkt.stream_index)
printf("Frame found!\n");
else
continue;
fwrite(pkt.data, 1, pkt.size, audio_dst_file);
}
/* flush cached frames */
#if 0
pkt.data = NULL;
pkt.size = 0;
do {
decode_packet(&got_frame, 1);
} while (got_frame);
#endif
printf("Demuxing succeeded.\n");
if (video_stream) {
printf("Play the output video file with the command:\n"
"ffplay -f rawvideo -pix_fmt %s -video_size %dx%d %s\n",
av_get_pix_fmt_name(video_dec_ctx->pix_fmt), video_dec_ctx->width, video_dec_ctx->height,
video_dst_filename);
}
if (audio_stream) {
const char *fmt;
if ((ret = get_format_from_sample_fmt(&fmt, audio_dec_ctx->sample_fmt) < 0))
goto end;
printf("Play the output audio file with the command:\n"
"ffplay -f %s -ac %d -ar %d %s\n",
fmt, audio_dec_ctx->channels, audio_dec_ctx->sample_rate,
audio_dst_filename);
}
end:
if (video_dec_ctx)
avcodec_close(video_dec_ctx);
if (audio_dec_ctx)
avcodec_close(audio_dec_ctx);
avformat_close_input(&fmt_ctx);
if (video_dst_file)
fclose(video_dst_file);
if (audio_dst_file)
fclose(audio_dst_file);
av_free(frame);
av_free(video_dst_data[0]);
av_free(audio_dst_data);
return ret < 0;
}
int main (int argc, char **argv){
int ret = 0, got_frame;
AVFormatContext *ofmt_ctx = NULL;
AVOutputFormat *ofmt = NULL;
uint8_t *sample_buf;
if (argc != 4 && argc != 5) {
fprintf(stderr, "input 1.source file:%s\n"
"2.output_video\n"
"3.output_audio\n"
"4.mux video file(Optional)\n"
"\n", argv[0]);
exit(1);
}
src_filename = argv[1];
video_dst_filename = argv[2];
audio_dst_filename = argv[3];
//optional mux to any type video
if(argc == 5){
out_filename = argv[4];
}
/* register all formats and codecs */
av_register_all();
//for network stream
avformat_network_init();
ret = init_input();
if(ret){
goto end;
}
ret = init_video_out_context();
if(ret){
goto end;
}
ret = init_audio_out_context(sample_buf);
if(ret){
goto end;
}else{
int aud_buffer_size;
//alloc frame and packet
AudFrame = av_frame_alloc();
AudFrame->nb_samples = AudCodecCtx->frame_size;
AudFrame->format = AudCodecCtx->sample_fmt;
AudFrame->channel_layout = AudCodecCtx->channel_layout;
aud_buffer_size = av_samples_get_buffer_size(NULL, AudCodecCtx->channels,AudCodecCtx->frame_size,AudCodecCtx->sample_fmt, 1);
sample_buf = (uint8_t *)av_malloc(aud_buffer_size);
avcodec_fill_audio_frame(AudFrame, AudCodecCtx->channels, AudCodecCtx->sample_fmt,(const uint8_t*)sample_buf, aud_buffer_size, 1);
av_new_packet(&AudPkt,aud_buffer_size);
}
if(argc == 5){
//alloc memory
avformat_alloc_output_context2(&ofmt_ctx, NULL, NULL, out_filename);
if (!ofmt_ctx) {
printf( "Could not create output context\n");
ret = AVERROR_UNKNOWN;
return 1;
}
ofmt = ofmt_ctx->oformat;
ret = init_output(ofmt_ctx);
if(ret){
printf("Init output ERROR\n");
goto end;
}
}
if (!(ofmt->flags & AVFMT_NOFILE)) {
ret = avio_open(&ofmt_ctx->pb, out_filename, AVIO_FLAG_WRITE);
if (ret < 0) {
printf( "Could not open output file '%s'", out_filename);
goto end;
}
}
ret = avformat_write_header(ofmt_ctx, NULL);
if (ret < 0) {
printf( "Error occurred when opening output file\n");
goto end;
}
//this will fill up by decoder(|read frame|->packet->|decoder|->frame)
frame = av_frame_alloc();
if (!frame) {
fprintf(stderr, "Could not allocate frame\n");
ret = AVERROR(ENOMEM);
goto end;
}
if (video_stream)
printf("Demuxing video from file '%s' into '%s'\n", src_filename, video_dst_filename);
if (audio_stream)
printf("Demuxing audio from file '%s' into '%s'\n", src_filename, audio_dst_filename);
//Write video Header
avformat_write_header(pFormatCtx,NULL);
//Write audio Header
avformat_write_header(AudFormatCtx,NULL);
//alloc packet to get copy from pkt
av_new_packet(&epkt,picture_size);
/*setup the convert parameter
*due to input sample format AV_SAMPLE_FMT_FLTP
*can't be converted to AV_SAMPLE_FMT_S16
*which only accepted by the aac encoder
*/
swr = swr_alloc();
av_opt_set_int(swr, "in_channel_layout", audio_dec_ctx->channel_layout, 0);
av_opt_set_int(swr, "out_channel_layout", AudCodecCtx->channel_layout, 0);
av_opt_set_int(swr, "in_sample_rate", audio_dec_ctx->sample_rate, 0);
av_opt_set_int(swr, "out_sample_rate", AudCodecCtx->sample_rate, 0);
av_opt_set_sample_fmt(swr, "in_sample_fmt", AV_SAMPLE_FMT_FLTP, 0);
av_opt_set_sample_fmt(swr, "out_sample_fmt", AV_SAMPLE_FMT_S16, 0);
swr_init(swr);
/*start read frames from the file */
while (av_read_frame(fmt_ctx, &pkt) >= 0) {
//do demux & decode -> encode -> output h264 & aac file
ret = decode_packet();
if (ret < 0)
break;
if(argc == 5){
remux_packet(ofmt_ctx,&pkt);
}
av_free_packet(&pkt);
}
/* flush cached frames */
pkt.data = NULL;
pkt.size = 0;
//Flush Encoder
int retfe = flush_encoder(pFormatCtx,0);
if (retfe < 0) {
printf("Flushing encoder failed\n");
return -1;
}
//Flush Encoder
ret = flush_encoder(pFormatCtx,0);
if (ret < 0) {
printf("Flushing encoder failed\n");
return -1;
}
//Write video trailer
av_write_trailer(pFormatCtx);
//Write audio Trailer
av_write_trailer(AudFormatCtx);
//Write remux Trailer
if(argc == 5){
av_write_trailer(ofmt_ctx);
}
printf("Output succeeded!!!!\n");
end:
//free remux
if (ofmt_ctx && !(ofmt->flags & AVFMT_NOFILE))
avio_close(ofmt_ctx->pb);
avformat_free_context(ofmt_ctx);
//free audio
if (audio_st){
avcodec_close(audio_st->codec);
av_free(AudFrame);
av_free(sample_buf);
}
avio_close(AudFormatCtx->pb);
avformat_free_context(AudFormatCtx);
//free video
if (video_st){
avcodec_close(video_st->codec);
av_free(pFrame);
av_free(picture_buf);
}
avio_close(pFormatCtx->pb);
avformat_free_context(pFormatCtx);
//free decode
avcodec_close(video_dec_ctx);
avcodec_close(audio_dec_ctx);
avformat_close_input(&fmt_ctx);
if (video_dst_file)
fclose(video_dst_file);
if (audio_dst_file)
fclose(audio_dst_file);
av_frame_free(&frame);
return ret < 0;
}
jint Java_org_telegram_ui_Components_AnimatedFileDrawable_getVideoFrame(JNIEnv *env, jclass clazz, jobject ptr, jobject bitmap, jintArray data) {
if (ptr == NULL || bitmap == nullptr) {
return 0;
}
VideoInfo *info = (VideoInfo *) ptr;
int ret = 0;
int got_frame = 0;
while (true) {
if (info->pkt.size == 0) {
ret = av_read_frame(info->fmt_ctx, &info->pkt);
//LOGD("got packet with size %d", info->pkt.size);
if (ret >= 0) {
info->orig_pkt = info->pkt;
}
}
if (info->pkt.size > 0) {
ret = decode_packet(info, &got_frame);
if (ret < 0) {
if (info->has_decoded_frames) {
ret = 0;
}
info->pkt.size = 0;
} else {
//LOGD("read size %d from packet", ret);
info->pkt.data += ret;
info->pkt.size -= ret;
}
if (info->pkt.size == 0) {
av_free_packet(&info->orig_pkt);
}
} else {
info->pkt.data = NULL;
info->pkt.size = 0;
ret = decode_packet(info, &got_frame);
if (ret < 0) {
LOGE("can't decode packet flushed %s", info->src);
return 0;
}
if (got_frame == 0) {
if (info->has_decoded_frames) {
//LOGD("file end reached %s", info->src);
if ((ret = avformat_seek_file(info->fmt_ctx, -1, std::numeric_limits<int64_t>::min(), 0, std::numeric_limits<int64_t>::max(), 0)) < 0) {
LOGE("can't seek to begin of file %s, %s", info->src, av_err2str(ret));
return 0;
} else {
avcodec_flush_buffers(info->video_dec_ctx);
}
}
}
}
if (ret < 0) {
return 0;
}
if (got_frame) {
//LOGD("decoded frame with w = %d, h = %d, format = %d", info->frame->width, info->frame->height, info->frame->format);
if (info->frame->format == AV_PIX_FMT_YUV420P || info->frame->format == AV_PIX_FMT_BGRA || info->frame->format == AV_PIX_FMT_YUVJ420P) {
jint *dataArr = env->GetIntArrayElements(data, 0);
if (dataArr != nullptr) {
dataArr[3] = (int) (1000 * info->frame->pkt_pts * av_q2d(info->video_stream->time_base));
env->ReleaseIntArrayElements(data, dataArr, 0);
}
void *pixels;
if (AndroidBitmap_lockPixels(env, bitmap, &pixels) >= 0) {
if (info->frame->format == AV_PIX_FMT_YUV420P || info->frame->format == AV_PIX_FMT_YUVJ420P) {
//LOGD("y %d, u %d, v %d, width %d, height %d", info->frame->linesize[0], info->frame->linesize[2], info->frame->linesize[1], info->frame->width, info->frame->height);
libyuv::I420ToARGB(info->frame->data[0], info->frame->linesize[0], info->frame->data[2], info->frame->linesize[2], info->frame->data[1], info->frame->linesize[1], (uint8_t *) pixels, info->frame->width * 4, info->frame->width, info->frame->height);
} else if (info->frame->format == AV_PIX_FMT_BGRA) {
libyuv::ABGRToARGB(info->frame->data[0], info->frame->linesize[0], (uint8_t *) pixels, info->frame->width * 4, info->frame->width, info->frame->height);
}
AndroidBitmap_unlockPixels(env, bitmap);
}
}
info->has_decoded_frames = true;
av_frame_unref(info->frame);
return 1;
}
}
return 0;
}
