/*
- * FFM (ffserver live feed) muxer
- * Copyright (c) 2001 Fabrice Bellard.
+ * FFM (avserver live feed) muxer
+ * 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 <assert.h>
+
+#include "libavutil/intreadwrite.h"
+#include "libavutil/intfloat.h"
#include "avformat.h"
+#include "internal.h"
#include "ffm.h"
static void flush_packet(AVFormatContext *s)
{
FFMContext *ffm = s->priv_data;
int fill_size, h;
- ByteIOContext *pb = s->pb;
+ AVIOContext *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();
+ assert(avio_tell(pb) % ffm->packet_size == 0);
/* put header */
- put_be16(pb, PACKET_ID);
- put_be16(pb, fill_size);
- put_be64(pb, ffm->pts);
+ 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;
- put_be16(pb, h);
- put_buffer(pb, ffm->packet, ffm->packet_end - ffm->packet);
- put_flush_packet(pb);
+ 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->pts = 0; /* no pts */
ffm->packet_ptr = ffm->packet;
ffm->first_packet = 0;
}
/* 'first' is true if first data of a frame */
static void ffm_write_data(AVFormatContext *s,
const uint8_t *buf, int size,
- int64_t pts, int header)
+ int64_t dts, int header)
{
FFMContext *ffm = s->priv_data;
int len;
- if (header && ffm->frame_offset == 0)
+ if (header && ffm->frame_offset == 0) {
ffm->frame_offset = ffm->packet_ptr - ffm->packet + FFM_HEADER_SIZE;
- if (header && ffm->pts == 0)
- ffm->pts = pts;
+ ffm->dts = dts;
+ }
/* write as many packets as needed */
while (size > 0) {
ffm->packet_ptr += len;
buf += len;
size -= len;
- if (ffm->packet_ptr >= ffm->packet_end) {
- /* special case : no pts in packet : we leave the current one */
- if (ffm->pts == 0)
- ffm->pts = pts;
-
+ if (ffm->packet_ptr >= ffm->packet_end)
flush_packet(s);
- }
}
}
{
FFMContext *ffm = s->priv_data;
AVStream *st;
- ByteIOContext *pb = s->pb;
+ AVIOContext *pb = s->pb;
AVCodecContext *codec;
int bit_rate, i;
ffm->packet_size = FFM_PACKET_SIZE;
/* header */
- put_le32(pb, MKTAG('F', 'F', 'M', '1'));
- put_be32(pb, ffm->packet_size);
- /* XXX: store write position in other file ? */
- put_be64(pb, ffm->packet_size); /* current write position */
+ avio_wl32(pb, MKTAG('F', 'F', 'M', '1'));
+ avio_wb32(pb, ffm->packet_size);
+ avio_wb64(pb, 0); /* current write position */
- put_be32(pb, s->nb_streams);
+ avio_wb32(pb, s->nb_streams);
bit_rate = 0;
for(i=0;i<s->nb_streams;i++) {
st = s->streams[i];
bit_rate += st->codec->bit_rate;
}
- put_be32(pb, bit_rate);
+ avio_wb32(pb, bit_rate);
/* list of streams */
for(i=0;i<s->nb_streams;i++) {
st = s->streams[i];
- av_set_pts_info(st, 64, 1, 1000000);
+ avpriv_set_pts_info(st, 64, 1, 1000000);
codec = st->codec;
/* generic info */
- put_be32(pb, codec->codec_id);
- put_byte(pb, codec->codec_type);
- put_be32(pb, codec->bit_rate);
- put_be32(pb, st->quality);
- put_be32(pb, codec->flags);
- put_be32(pb, codec->flags2);
- put_be32(pb, codec->debug);
+ avio_wb32(pb, codec->codec_id);
+ avio_w8(pb, codec->codec_type);
+ avio_wb32(pb, codec->bit_rate);
+ avio_wb32(pb, codec->flags);
+ avio_wb32(pb, codec->flags2);
+ avio_wb32(pb, codec->debug);
/* specific info */
switch(codec->codec_type) {
- case CODEC_TYPE_VIDEO:
- put_be32(pb, codec->time_base.num);
- put_be32(pb, codec->time_base.den);
- put_be16(pb, codec->width);
- put_be16(pb, codec->height);
- put_be16(pb, codec->gop_size);
- put_be32(pb, codec->pix_fmt);
- put_byte(pb, codec->qmin);
- put_byte(pb, codec->qmax);
- put_byte(pb, codec->max_qdiff);
- put_be16(pb, (int) (codec->qcompress * 10000.0));
- put_be16(pb, (int) (codec->qblur * 10000.0));
- put_be32(pb, codec->bit_rate_tolerance);
- put_strz(pb, codec->rc_eq);
- put_be32(pb, codec->rc_max_rate);
- put_be32(pb, codec->rc_min_rate);
- put_be32(pb, codec->rc_buffer_size);
- put_be64(pb, av_dbl2int(codec->i_quant_factor));
- put_be64(pb, av_dbl2int(codec->b_quant_factor));
- put_be64(pb, av_dbl2int(codec->i_quant_offset));
- put_be64(pb, av_dbl2int(codec->b_quant_offset));
- put_be32(pb, codec->dct_algo);
- put_be32(pb, codec->strict_std_compliance);
- put_be32(pb, codec->max_b_frames);
- put_be32(pb, codec->luma_elim_threshold);
- put_be32(pb, codec->chroma_elim_threshold);
- put_be32(pb, codec->mpeg_quant);
- put_be32(pb, codec->intra_dc_precision);
- put_be32(pb, codec->me_method);
- put_be32(pb, codec->mb_decision);
- put_be32(pb, codec->nsse_weight);
- put_be32(pb, codec->frame_skip_cmp);
- put_be64(pb, av_dbl2int(codec->rc_buffer_aggressivity));
- put_be32(pb, codec->codec_tag);
+ case AVMEDIA_TYPE_VIDEO:
+ avio_wb32(pb, codec->time_base.num);
+ avio_wb32(pb, codec->time_base.den);
+ avio_wb16(pb, codec->width);
+ avio_wb16(pb, codec->height);
+ avio_wb16(pb, codec->gop_size);
+ avio_wb32(pb, codec->pix_fmt);
+ avio_w8(pb, codec->qmin);
+ avio_w8(pb, codec->qmax);
+ avio_w8(pb, codec->max_qdiff);
+ avio_wb16(pb, (int) (codec->qcompress * 10000.0));
+ avio_wb16(pb, (int) (codec->qblur * 10000.0));
+ avio_wb32(pb, codec->bit_rate_tolerance);
+ avio_put_str(pb, codec->rc_eq ? codec->rc_eq : "tex^qComp");
+ avio_wb32(pb, codec->rc_max_rate);
+ avio_wb32(pb, codec->rc_min_rate);
+ avio_wb32(pb, codec->rc_buffer_size);
+ avio_wb64(pb, av_double2int(codec->i_quant_factor));
+ avio_wb64(pb, av_double2int(codec->b_quant_factor));
+ avio_wb64(pb, av_double2int(codec->i_quant_offset));
+ avio_wb64(pb, av_double2int(codec->b_quant_offset));
+ avio_wb32(pb, codec->dct_algo);
+ avio_wb32(pb, codec->strict_std_compliance);
+ avio_wb32(pb, codec->max_b_frames);
+ avio_wb32(pb, codec->mpeg_quant);
+ avio_wb32(pb, codec->intra_dc_precision);
+ avio_wb32(pb, codec->me_method);
+ avio_wb32(pb, codec->mb_decision);
+ avio_wb32(pb, codec->nsse_weight);
+ avio_wb32(pb, codec->frame_skip_cmp);
+ avio_wb64(pb, av_double2int(codec->rc_buffer_aggressivity));
+ avio_wb32(pb, codec->codec_tag);
+ avio_w8(pb, codec->thread_count);
+ avio_wb32(pb, codec->coder_type);
+ avio_wb32(pb, codec->me_cmp);
+ avio_wb32(pb, codec->me_subpel_quality);
+ avio_wb32(pb, codec->me_range);
+ avio_wb32(pb, codec->keyint_min);
+ avio_wb32(pb, codec->scenechange_threshold);
+ avio_wb32(pb, codec->b_frame_strategy);
+ avio_wb64(pb, av_double2int(codec->qcompress));
+ avio_wb64(pb, av_double2int(codec->qblur));
+ avio_wb32(pb, codec->max_qdiff);
+ avio_wb32(pb, codec->refs);
break;
- case CODEC_TYPE_AUDIO:
- put_be32(pb, codec->sample_rate);
- put_le16(pb, codec->channels);
- put_le16(pb, codec->frame_size);
+ case AVMEDIA_TYPE_AUDIO:
+ avio_wb32(pb, codec->sample_rate);
+ avio_wl16(pb, codec->channels);
+ avio_wl16(pb, codec->frame_size);
break;
default:
return -1;
}
if (codec->flags & CODEC_FLAG_GLOBAL_HEADER) {
- put_be32(pb, codec->extradata_size);
- put_buffer(pb, codec->extradata, codec->extradata_size);
+ avio_wb32(pb, codec->extradata_size);
+ avio_write(pb, codec->extradata, codec->extradata_size);
}
}
/* flush until end of block reached */
- while ((url_ftell(pb) % ffm->packet_size) != 0)
- put_byte(pb, 0);
+ while ((avio_tell(pb) % ffm->packet_size) != 0)
+ avio_w8(pb, 0);
- put_flush_packet(pb);
+ avio_flush(pb);
/* init packet mux */
ffm->packet_ptr = ffm->packet;
ffm->packet_end = ffm->packet + ffm->packet_size - FFM_HEADER_SIZE;
assert(ffm->packet_end >= ffm->packet);
ffm->frame_offset = 0;
- ffm->pts = 0;
+ ffm->dts = 0;
ffm->first_packet = 1;
return 0;
static int ffm_write_packet(AVFormatContext *s, AVPacket *pkt)
{
- int64_t pts;
- uint8_t header[FRAME_HEADER_SIZE];
+ int64_t dts;
+ uint8_t header[FRAME_HEADER_SIZE+4];
int header_size = FRAME_HEADER_SIZE;
- pts = s->timestamp + pkt->pts;
+ dts = pkt->dts;
/* packet size & key_frame */
header[0] = pkt->stream_index;
header[1] = 0;
- if (pkt->flags & PKT_FLAG_KEY)
+ if (pkt->flags & AV_PKT_FLAG_KEY)
header[1] |= FLAG_KEY_FRAME;
AV_WB24(header+2, pkt->size);
AV_WB24(header+5, pkt->duration);
- AV_WB64(header+8, pts);
+ AV_WB64(header+8, pkt->pts);
if (pkt->pts != pkt->dts) {
header[1] |= FLAG_DTS;
AV_WB32(header+16, pkt->pts - pkt->dts);
header_size += 4;
}
- ffm_write_data(s, header, header_size, pts, 1);
- ffm_write_data(s, pkt->data, pkt->size, pts, 0);
+ ffm_write_data(s, header, header_size, dts, 1);
+ ffm_write_data(s, pkt->data, pkt->size, dts, 0);
return 0;
}
static int ffm_write_trailer(AVFormatContext *s)
{
- ByteIOContext *pb = s->pb;
FFMContext *ffm = s->priv_data;
/* flush packets */
if (ffm->packet_ptr > ffm->packet)
flush_packet(s);
- put_flush_packet(pb);
-
- if (!url_is_streamed(pb)) {
- int64_t size;
- /* update the write offset */
- size = url_ftell(pb);
- url_fseek(pb, 8, SEEK_SET);
- put_be64(pb, size);
- put_flush_packet(pb);
- }
-
return 0;
}
-AVOutputFormat ffm_muxer = {
- "ffm",
- NULL_IF_CONFIG_SMALL("ffm format"),
- "",
- "ffm",
- sizeof(FFMContext),
- /* not really used */
- CODEC_ID_MP2,
- CODEC_ID_MPEG1VIDEO,
- ffm_write_header,
- ffm_write_packet,
- ffm_write_trailer,
+AVOutputFormat ff_ffm_muxer = {
+ .name = "ffm",
+ .long_name = NULL_IF_CONFIG_SMALL("FFM (AVserver live feed)"),
+ .mime_type = "",
+ .extensions = "ffm",
+ .priv_data_size = sizeof(FFMContext),
+ .audio_codec = AV_CODEC_ID_MP2,
+ .video_codec = AV_CODEC_ID_MPEG1VIDEO,
+ .write_header = ffm_write_header,
+ .write_packet = ffm_write_packet,
+ .write_trailer = ffm_write_trailer,
};
projects / ffmpeg / blobdiff