/* send an integer number of samples and compute time stamp and fill
the rtp send buffer before sending. */
static void rtp_send_samples(AVFormatContext *s1,
const uint8_t *buf1, int size, int sample_size)
{
RTPMuxContext *s = s1->priv_data;
int len, max_packet_size, n;
max_packet_size = (s->max_payload_size / sample_size) * sample_size;
/* not needed, but who nows */
if ((size % sample_size) != 0)
av_abort();
n = 0;
while (size > 0) {
s->buf_ptr = s->buf;
len = FFMIN(max_packet_size, size);
/* copy data */
memcpy(s->buf_ptr, buf1, len);
s->buf_ptr += len;
buf1 += len;
size -= len;
s->timestamp = s->cur_timestamp + n / sample_size;
ff_rtp_send_data(s1, s->buf, s->buf_ptr - s->buf, 0);
n += (s->buf_ptr - s->buf);
}
}
static int iff_read_packet(AVFormatContext *s,
AVPacket *pkt)
{
IffDemuxContext *iff = s->priv_data;
AVIOContext *pb = s->pb;
AVStream *st = s->streams[0];
int ret;
if(iff->sent_bytes >= iff->body_size)
return AVERROR_EOF;
if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
ret = av_get_packet(pb, pkt, iff->body_size);
} else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
uint8_t *buf;
if (av_new_packet(pkt, iff->body_size + 2) < 0) {
return AVERROR(ENOMEM);
}
buf = pkt->data;
bytestream_put_be16(&buf, 2);
ret = avio_read(pb, buf, iff->body_size);
} else {
av_abort();
}
if(iff->sent_bytes == 0)
pkt->flags |= AV_PKT_FLAG_KEY;
iff->sent_bytes = iff->body_size;
pkt->stream_index = 0;
return ret;
}
static void flush_packet(AVFormatContext *s)
{
FFMContext *ffm = s->priv_data;
int fill_size, h;
ByteIOContext *pb = s->pb;
fill_size = ffm->packet_end - ffm->packet_ptr;
memset(ffm->packet_ptr, 0, fill_size);
if (url_ftell(pb) % ffm->packet_size)
av_abort();
/* put header */
put_be16(pb, PACKET_ID);
put_be16(pb, fill_size);
put_be64(pb, ffm->dts);
h = ffm->frame_offset;
if (ffm->first_packet)
h |= 0x8000;
put_be16(pb, h);
put_buffer(pb, ffm->packet, ffm->packet_end - ffm->packet);
put_flush_packet(pb);
/* prepare next packet */
ffm->frame_offset = 0; /* no key frame */
ffm->packet_ptr = ffm->packet;
ffm->first_packet = 0;
}
static void flush_packet(AVFormatContext *s)
{
FFMContext *ffm = s->priv_data;
int fill_size, h;
AVIOContext *pb = s->pb;
fill_size = ffm->packet_end - ffm->packet_ptr;
memset(ffm->packet_ptr, 0, fill_size);
if (avio_tell(pb) % ffm->packet_size)
av_abort();
/* put header */
avio_wb16(pb, PACKET_ID);
avio_wb16(pb, fill_size);
avio_wb64(pb, ffm->dts);
h = ffm->frame_offset;
if (ffm->first_packet)
h |= 0x8000;
avio_wb16(pb, h);
avio_write(pb, ffm->packet, ffm->packet_end - ffm->packet);
avio_flush(pb);
/* prepare next packet */
ffm->frame_offset = 0; /* no key frame */
ffm->packet_ptr = ffm->packet;
ffm->first_packet = 0;
}
/* send an integer number of samples and compute time stamp and fill
the rtp send buffer before sending. */
static void rtp_send_samples(AVFormatContext *s1,
const uint8_t *buf1, int size, int sample_size)
{
RTPMuxContext *s = s1->priv_data;
int len, max_packet_size, n;
/* modify max packet size to 20ms according to rtp default */
//max_packet_size = (s->max_payload_size / sample_size) * sample_size;
max_packet_size = 160 * sample_size;
/* not needed, but who nows */
if ((size % sample_size) != 0)
av_abort();
n = 0;
s->buf_ptr = s->buf;
if (s->stock_len > 0) {
memcpy(s->buf, s->stock_buf, s->stock_len);
s->buf_ptr += s->stock_len;
s->stock_len = 0;
}
//while (size > 0) {
while (size+s->buf_ptr-s->buf >= max_packet_size) {
//s->buf_ptr = s->buf;
len = FFMIN(max_packet_size, size) - (s->buf_ptr-s->buf);
/* copy data */
memcpy(s->buf_ptr, buf1, len);
s->buf_ptr += len;
buf1 += len;
size -= len;
s->timestamp = s->cur_timestamp + n / sample_size;
ff_rtp_send_data(s1, s->buf, s->buf_ptr - s->buf, 0);
//usleep(19*1000);
n += (s->buf_ptr - s->buf);
s->buf_ptr = s->buf;
}
if (size > 0) {
memcpy(s->stock_buf, buf1, size);
s->stock_len = size;
}
s->cur_timestamp += n / sample_size;
}
static int avi_write_header(AVFormatContext *s)
{
AVIContext *avi = s->priv_data;
ByteIOContext *pb = &s->pb;
int bitrate, n, i, nb_frames, au_byterate, au_ssize, au_scale;
AVCodecContext *stream, *video_enc;
offset_t list1, list2, strh, strf;
/* header list */
avi->riff_id = 0;
list1 = avi_start_new_riff(avi, pb, "AVI ", "hdrl");
/* avi header */
put_tag(pb, "avih");
put_le32(pb, 14 * 4);
bitrate = 0;
video_enc = NULL;
for(n=0;n<s->nb_streams;n++) {
stream = &s->streams[n]->codec;
bitrate += stream->bit_rate;
if (stream->codec_type == CODEC_TYPE_VIDEO)
video_enc = stream;
}
nb_frames = 0;
if(video_enc){
put_le32(pb, (uint32_t)(int64_t_C(1000000) * video_enc->frame_rate_base / video_enc->frame_rate));
} else {
put_le32(pb, 0);
}
put_le32(pb, bitrate / 8); /* XXX: not quite exact */
put_le32(pb, 0); /* padding */
put_le32(pb, AVIF_TRUSTCKTYPE | AVIF_HASINDEX | AVIF_ISINTERLEAVED); /* flags */
avi->frames_hdr_all = url_ftell(pb); /* remember this offset to fill later */
put_le32(pb, nb_frames); /* nb frames, filled later */
put_le32(pb, 0); /* initial frame */
put_le32(pb, s->nb_streams); /* nb streams */
put_le32(pb, 1024 * 1024); /* suggested buffer size */
if(video_enc){
put_le32(pb, video_enc->width);
put_le32(pb, video_enc->height);
} else {
put_le32(pb, 0);
put_le32(pb, 0);
}
put_le32(pb, 0); /* reserved */
put_le32(pb, 0); /* reserved */
put_le32(pb, 0); /* reserved */
put_le32(pb, 0); /* reserved */
/* stream list */
for(i=0;i<n;i++) {
list2 = start_tag(pb, "LIST");
put_tag(pb, "strl");
stream = &s->streams[i]->codec;
/* FourCC should really be set by the codec itself */
if (! stream->codec_tag) {
stream->codec_tag = codec_get_bmp_tag(stream->codec_id);
}
/* stream generic header */
strh = start_tag(pb, "strh");
switch(stream->codec_type) {
case CODEC_TYPE_VIDEO:
put_tag(pb, "vids");
put_le32(pb, stream->codec_tag);
put_le32(pb, 0); /* flags */
put_le16(pb, 0); /* priority */
put_le16(pb, 0); /* language */
put_le32(pb, 0); /* initial frame */
put_le32(pb, stream->frame_rate_base); /* scale */
put_le32(pb, stream->frame_rate); /* rate */
av_set_pts_info(s->streams[i], 64, stream->frame_rate_base, stream->frame_rate);
put_le32(pb, 0); /* start */
avi->frames_hdr_strm[i] = url_ftell(pb); /* remember this offset to fill later */
put_le32(pb, nb_frames); /* length, XXX: fill later */
put_le32(pb, 1024 * 1024); /* suggested buffer size */
put_le32(pb, -1); /* quality */
put_le32(pb, stream->width * stream->height * 3); /* sample size */
put_le16(pb, 0);
put_le16(pb, 0);
put_le16(pb, stream->width);
put_le16(pb, stream->height);
break;
case CODEC_TYPE_AUDIO:
put_tag(pb, "auds");
put_le32(pb, 1); /* tag */
put_le32(pb, 0); /* flags */
put_le16(pb, 0); /* priority */
put_le16(pb, 0); /* language */
put_le32(pb, 0); /* initial frame */
parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale);
put_le32(pb, au_scale); /* scale */
put_le32(pb, au_byterate); /* rate */
// av_set_pts_info(&s->streams[i], 64, au_scale, au_byterate);
put_le32(pb, 0); /* start */
avi->frames_hdr_strm[i] = url_ftell(pb); /* remember this offset to fill later */
put_le32(pb, 0); /* length, XXX: filled later */
put_le32(pb, 12 * 1024); /* suggested buffer size */
put_le32(pb, -1); /* quality */
put_le32(pb, au_ssize); /* sample size */
put_le32(pb, 0);
put_le32(pb, 0);
break;
default:
av_abort();
}
end_tag(pb, strh);
strf = start_tag(pb, "strf");
switch(stream->codec_type) {
case CODEC_TYPE_VIDEO:
put_bmp_header(pb, stream, codec_bmp_tags, 0);
break;
case CODEC_TYPE_AUDIO:
if (put_wav_header(pb, stream) < 0) {
av_free(avi);
return -1;
}
break;
default:
av_abort();
}
end_tag(pb, strf);
if (!url_is_streamed(pb)) {
unsigned char tag[5];
int j;
/* Starting to lay out AVI OpenDML master index.
* We want to make it JUNK entry for now, since we'd
* like to get away without making AVI an OpenDML one
* for compatibility reasons.
*/
avi->indexes[i].entry = avi->indexes[i].ents_allocated = 0;
avi->indexes[i].indx_start = start_tag(pb, "JUNK");
put_le16(pb, 4); /* wLongsPerEntry */
put_byte(pb, 0); /* bIndexSubType (0 == frame index) */
put_byte(pb, 0); /* bIndexType (0 == AVI_INDEX_OF_INDEXES) */
put_le32(pb, 0); /* nEntriesInUse (will fill out later on) */
put_tag(pb, avi_stream2fourcc(&tag[0], i, stream->codec_type));
/* dwChunkId */
put_le64(pb, 0); /* dwReserved[3]
put_le32(pb, 0); Must be 0. */
for (j=0; j < AVI_MASTER_INDEX_SIZE * 2; j++)
put_le64(pb, 0);
end_tag(pb, avi->indexes[i].indx_start);
}
end_tag(pb, list2);
}
if (!url_is_streamed(pb)) {
/* AVI could become an OpenDML one, if it grows beyond 2Gb range */
avi->odml_list = start_tag(pb, "JUNK");
put_tag(pb, "odml");
put_tag(pb, "dmlh");
put_le32(pb, 248);
for (i = 0; i < 248; i+= 4)
put_le32(pb, 0);
end_tag(pb, avi->odml_list);
}
end_tag(pb, list1);
avi->movi_list = start_tag(pb, "LIST");
put_tag(pb, "movi");
put_flush_packet(pb);
return 0;
}
void Process(void *ctx, AVPicture *picture, enum PixelFormat pix_fmt, int width, int height, int64_t pts)
{
ContextInfo *ci = (ContextInfo *) ctx;
AVPicture picture1;
Imlib_Image image;
DATA32 *data;
image = get_cached_image(ci, width, height);
if (!image) {
image = imlib_create_image(width, height);
put_cached_image(ci, image, width, height);
}
imlib_context_set_image(image);
data = imlib_image_get_data();
if (pix_fmt != PIX_FMT_RGBA32) {
avpicture_fill(&picture1, (uint8_t *) data, PIX_FMT_RGBA32, width, height);
if (img_convert(&picture1, PIX_FMT_RGBA32,
picture, pix_fmt, width, height) < 0) {
goto done;
}
} else {
av_abort();
}
imlib_image_set_has_alpha(0);
{
int wid, hig, h_a, v_a;
char buff[1000];
char tbuff[1000];
char *tbp = ci->text;
time_t now = time(0);
char *p, *q;
int x, y;
if (ci->file) {
int fd = open(ci->file, O_RDONLY);
if (fd < 0) {
tbp = "[File not found]";
} else {
int l = read(fd, tbuff, sizeof(tbuff) - 1);
if (l >= 0) {
tbuff[l] = 0;
tbp = tbuff;
} else {
tbp = "[I/O Error]";
}
close(fd);
}
}
strftime(buff, sizeof(buff), tbp ? tbp : "[No data]", localtime(&now));
x = ci->x;
y = ci->y;
for (p = buff; p; p = q) {
q = strchr(p, '\n');
if (q)
*q++ = 0;
imlib_text_draw_with_return_metrics(x, y, p, &wid, &hig, &h_a, &v_a);
y += v_a;
}
}
if (pix_fmt != PIX_FMT_RGBA32) {
if (img_convert(picture, pix_fmt,
&picture1, PIX_FMT_RGBA32, width, height) < 0) {
}
}
done:
;
}
