/*
- * FFM (ffserver live feed) demuxer
+ * FFM (avserver live feed) demuxer
* Copyright (c) 2001 Fabrice Bellard
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#include <stdint.h>
+
#include "libavutil/intreadwrite.h"
+#include "libavutil/intfloat.h"
#include "avformat.h"
+#include "internal.h"
#include "ffm.h"
-#if CONFIG_FFSERVER
-#include <unistd.h>
-
-int64_t ffm_read_write_index(int fd)
-{
- uint8_t buf[8];
-
- lseek(fd, 8, SEEK_SET);
- if (read(fd, buf, 8) != 8)
- return AVERROR(EIO);
- return AV_RB64(buf);
-}
-
-int ffm_write_write_index(int fd, int64_t pos)
-{
- uint8_t buf[8];
- int i;
-
- for(i=0;i<8;i++)
- buf[i] = (pos >> (56 - i * 8)) & 0xff;
- lseek(fd, 8, SEEK_SET);
- if (write(fd, buf, 8) != 8)
- return AVERROR(EIO);
- return 8;
-}
-
-void ffm_set_write_index(AVFormatContext *s, int64_t pos, int64_t file_size)
-{
- FFMContext *ffm = s->priv_data;
- ffm->write_index = pos;
- ffm->file_size = file_size;
-}
-#endif // CONFIG_FFSERVER
static int ffm_is_avail_data(AVFormatContext *s, int size)
{
len = ffm->packet_end - ffm->packet_ptr;
if (size <= len)
return 1;
- pos = url_ftell(s->pb);
+ pos = avio_tell(s->pb);
if (!ffm->write_index) {
if (pos == ffm->file_size)
return AVERROR_EOF;
{
av_log(s, AV_LOG_ERROR, "resyncing\n");
while (state != PACKET_ID) {
- if (url_feof(s->pb)) {
+ if (s->pb->eof_reached) {
av_log(s, AV_LOG_ERROR, "cannot find FFM syncword\n");
return -1;
}
if (len > size)
len = size;
if (len == 0) {
- if (url_ftell(pb) == ffm->file_size)
+ if (avio_tell(pb) == ffm->file_size)
avio_seek(pb, ffm->packet_size, SEEK_SET);
retry_read:
id = avio_rb16(pb); /* PACKET_ID */
if (ffm->first_packet || (frame_offset & 0x8000)) {
if (!frame_offset) {
/* This packet has no frame headers in it */
- if (url_ftell(pb) >= ffm->packet_size * 3) {
+ if (avio_tell(pb) >= ffm->packet_size * 3) {
avio_seek(pb, -ffm->packet_size * 2, SEEK_CUR);
goto retry_read;
}
return size1 - size;
}
-//#define DEBUG_SEEK
-
/* ensure that acutal seeking happens between FFM_PACKET_SIZE
and file_size - FFM_PACKET_SIZE */
-static void ffm_seek1(AVFormatContext *s, int64_t pos1)
+static int64_t ffm_seek1(AVFormatContext *s, int64_t pos1)
{
FFMContext *ffm = s->priv_data;
AVIOContext *pb = s->pb;
pos = FFMIN(pos1, ffm->file_size - FFM_PACKET_SIZE);
pos = FFMAX(pos, FFM_PACKET_SIZE);
-#ifdef DEBUG_SEEK
- av_log(s, AV_LOG_DEBUG, "seek to %"PRIx64" -> %"PRIx64"\n", pos1, pos);
-#endif
- avio_seek(pb, pos, SEEK_SET);
+ av_dlog(s, "seek to %"PRIx64" -> %"PRIx64"\n", pos1, pos);
+ return avio_seek(pb, pos, SEEK_SET);
}
static int64_t get_dts(AVFormatContext *s, int64_t pos)
int64_t dts;
ffm_seek1(s, pos);
- url_fskip(pb, 4);
+ avio_skip(pb, 4);
dts = avio_rb64(pb);
-#ifdef DEBUG_SEEK
- av_log(s, AV_LOG_DEBUG, "dts=%0.6f\n", dts / 1000000.0);
-#endif
+ av_dlog(s, "dts=%0.6f\n", dts / 1000000.0);
return dts;
}
//int64_t orig_write_index = ffm->write_index;
int64_t pos_min, pos_max;
int64_t pts_start;
- int64_t ptr = url_ftell(pb);
+ int64_t ptr = avio_tell(pb);
pos_min = 0;
ffm->write_index += pos_max;
}
- //printf("Adjusted write index from %"PRId64" to %"PRId64": pts=%0.6f\n", orig_write_index, ffm->write_index, pts / 1000000.);
- //printf("pts range %0.6f - %0.6f\n", get_dts(s, 0) / 1000000. , get_dts(s, ffm->file_size - 2 * FFM_PACKET_SIZE) / 1000000. );
-
end:
avio_seek(pb, ptr, SEEK_SET);
}
}
-static int ffm_read_header(AVFormatContext *s, AVFormatParameters *ap)
+static int ffm_read_header(AVFormatContext *s)
{
FFMContext *ffm = s->priv_data;
AVStream *st;
goto fail;
ffm->write_index = avio_rb64(pb);
/* get also filesize */
- if (!url_is_streamed(pb)) {
- ffm->file_size = url_fsize(pb);
+ if (pb->seekable) {
+ ffm->file_size = avio_size(pb);
if (ffm->write_index)
adjust_write_index(s);
} else {
for(i=0;i<nb_streams;i++) {
char rc_eq_buf[128];
- st = av_new_stream(s, 0);
+ st = avformat_new_stream(s, NULL);
if (!st)
goto fail;
- av_set_pts_info(st, 64, 1, 1000000);
+ avpriv_set_pts_info(st, 64, 1, 1000000);
codec = st->codec;
/* generic info */
codec->codec_id = avio_rb32(pb);
codec->codec_type = avio_r8(pb); /* codec_type */
codec->bit_rate = avio_rb32(pb);
- st->quality = avio_rb32(pb);
codec->flags = avio_rb32(pb);
codec->flags2 = avio_rb32(pb);
codec->debug = avio_rb32(pb);
codec->qcompress = avio_rb16(pb) / 10000.0;
codec->qblur = avio_rb16(pb) / 10000.0;
codec->bit_rate_tolerance = avio_rb32(pb);
- codec->rc_eq = av_strdup(get_strz(pb, rc_eq_buf, sizeof(rc_eq_buf)));
+ avio_get_str(pb, INT_MAX, rc_eq_buf, sizeof(rc_eq_buf));
+ codec->rc_eq = av_strdup(rc_eq_buf);
codec->rc_max_rate = avio_rb32(pb);
codec->rc_min_rate = avio_rb32(pb);
codec->rc_buffer_size = avio_rb32(pb);
- codec->i_quant_factor = av_int2dbl(avio_rb64(pb));
- codec->b_quant_factor = av_int2dbl(avio_rb64(pb));
- codec->i_quant_offset = av_int2dbl(avio_rb64(pb));
- codec->b_quant_offset = av_int2dbl(avio_rb64(pb));
+ codec->i_quant_factor = av_int2double(avio_rb64(pb));
+ codec->b_quant_factor = av_int2double(avio_rb64(pb));
+ codec->i_quant_offset = av_int2double(avio_rb64(pb));
+ codec->b_quant_offset = av_int2double(avio_rb64(pb));
codec->dct_algo = avio_rb32(pb);
codec->strict_std_compliance = avio_rb32(pb);
codec->max_b_frames = avio_rb32(pb);
- codec->luma_elim_threshold = avio_rb32(pb);
- codec->chroma_elim_threshold = avio_rb32(pb);
codec->mpeg_quant = avio_rb32(pb);
codec->intra_dc_precision = avio_rb32(pb);
codec->me_method = avio_rb32(pb);
codec->mb_decision = avio_rb32(pb);
codec->nsse_weight = avio_rb32(pb);
codec->frame_skip_cmp = avio_rb32(pb);
- codec->rc_buffer_aggressivity = av_int2dbl(avio_rb64(pb));
+ codec->rc_buffer_aggressivity = av_int2double(avio_rb64(pb));
codec->codec_tag = avio_rb32(pb);
codec->thread_count = avio_r8(pb);
codec->coder_type = avio_rb32(pb);
codec->me_cmp = avio_rb32(pb);
- codec->partitions = avio_rb32(pb);
codec->me_subpel_quality = avio_rb32(pb);
codec->me_range = avio_rb32(pb);
codec->keyint_min = avio_rb32(pb);
codec->scenechange_threshold = avio_rb32(pb);
codec->b_frame_strategy = avio_rb32(pb);
- codec->qcompress = av_int2dbl(avio_rb64(pb));
- codec->qblur = av_int2dbl(avio_rb64(pb));
+ codec->qcompress = av_int2double(avio_rb64(pb));
+ codec->qblur = av_int2double(avio_rb64(pb));
codec->max_qdiff = avio_rb32(pb);
codec->refs = avio_rb32(pb);
- codec->directpred = avio_rb32(pb);
break;
case AVMEDIA_TYPE_AUDIO:
codec->sample_rate = avio_rb32(pb);
codec->channels = avio_rl16(pb);
codec->frame_size = avio_rl16(pb);
- codec->sample_fmt = (int16_t) avio_rl16(pb);
break;
default:
goto fail;
}
/* get until end of block reached */
- while ((url_ftell(pb) % ffm->packet_size) != 0)
+ while ((avio_tell(pb) % ffm->packet_size) != 0)
avio_r8(pb);
/* init packet demux */
return ret;
av_dlog(s, "pos=%08"PRIx64" spos=%"PRIx64", write_index=%"PRIx64" size=%"PRIx64"\n",
- url_ftell(s->pb), s->pb->pos, ffm->write_index, ffm->file_size);
+ avio_tell(s->pb), s->pb->pos, ffm->write_index, ffm->file_size);
if (ffm_read_data(s, ffm->header, FRAME_HEADER_SIZE, 1) !=
FRAME_HEADER_SIZE)
return -1;
if (ffm->header[1] & FLAG_DTS)
if (ffm_read_data(s, ffm->header+16, 4, 1) != 4)
return -1;
-#if 0
- av_hexdump_log(s, AV_LOG_DEBUG, ffm->header, FRAME_HEADER_SIZE);
-#endif
ffm->read_state = READ_DATA;
/* fall thru */
case READ_DATA:
ffm->read_state = READ_HEADER;
return -1;
}
- pkt->pos = url_ftell(s->pb);
+ pkt->pos = avio_tell(s->pb);
if (ffm->header[1] & FLAG_KEY_FRAME)
pkt->flags |= AV_PKT_FLAG_KEY;
int64_t pts_min, pts_max, pts;
double pos1;
-#ifdef DEBUG_SEEK
- av_log(s, AV_LOG_DEBUG, "wanted_pts=%0.6f\n", wanted_pts / 1000000.0);
-#endif
+ av_dlog(s, "wanted_pts=%0.6f\n", wanted_pts / 1000000.0);
/* find the position using linear interpolation (better than
dichotomy in typical cases) */
pos_min = FFM_PACKET_SIZE;
pos = (flags & AVSEEK_FLAG_BACKWARD) ? pos_min : pos_max;
found:
- ffm_seek1(s, pos);
+ if (ffm_seek1(s, pos) < 0)
+ return -1;
/* reset read state */
ffm->read_state = READ_HEADER;
}
AVInputFormat ff_ffm_demuxer = {
- "ffm",
- NULL_IF_CONFIG_SMALL("FFM (FFserver live feed) format"),
- sizeof(FFMContext),
- ffm_probe,
- ffm_read_header,
- ffm_read_packet,
- ffm_close,
- ffm_seek,
+ .name = "ffm",
+ .long_name = NULL_IF_CONFIG_SMALL("FFM (AVserver live feed)"),
+ .priv_data_size = sizeof(FFMContext),
+ .read_probe = ffm_probe,
+ .read_header = ffm_read_header,
+ .read_packet = ffm_read_packet,
+ .read_close = ffm_close,
+ .read_seek = ffm_seek,
};
projects / ffmpeg / blobdiff