mirror of
https://git.ffmpeg.org/ffmpeg.git
synced 2024-12-22 07:20:45 +00:00
Replace defines in libavformat/mpegtsenc.c with AVOptions
Around 01/28/11 18:56, Ronald S. Bultje scribbled:
> That patch is now merged, can you submit the update to muxers.texi?
> Then we'll apply the whole thing.
See attached. I hope the documentation is enough.
--
Georgi Chorbadzhiyski
http://georgi.unixsol.org/
From c236024b8254f5c2c45934c30fff390cb0e55a5e Mon Sep 17 00:00:00 2001
From: Georgi Chorbadzhiyski <gf@unixsol.org>
Date: Tue, 25 Jan 2011 13:09:17 +0200
Subject: [PATCH] mpegts: Replace defines in with AVOptions
This patch adds support for setting transport_stream_id,
original_network_id, service_id, pmt_start_pid and start_pid
in mpegts muxer.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 445996aa51)
This commit is contained in:
Georgi Chorbadzhiyski
Michael Niedermayer
parent
29f22e049a
commit
a735bbbb7a
@ -68,4 +68,45 @@ Note also that the pattern must not necessarily contain "%d" or
|
||||
ffmpeg -i in.avi -f image2 -vframes 1 img.jpeg
|
||||
@end example
|
||||
|
||||
@section mpegts
|
||||
|
||||
MPEG transport stream muxer.
|
||||
|
||||
This muxer implements ISO 13818-1 and part of ETSI EN 300 468.
|
||||
|
||||
The muxer options are:
|
||||
|
||||
@table @option
|
||||
@item -mpegts_original_network_id @var{number}
|
||||
Set the original_network_id (default 0x0001). This is unique identifier
|
||||
of a network in DVB. Its main use is in the unique identification of a
|
||||
service through the path Original_Network_ID, Transport_Stream_ID.
|
||||
@item -mpegts_transport_stream_id @var{number}
|
||||
Set the transport_stream_id (default 0x0001). This identifies a
|
||||
transponder in DVB.
|
||||
@item -mpegts_service_id @var{number}
|
||||
Set the service_id (default 0x0001) also known as program in DVB.
|
||||
@item -mpegts_pmt_start_pid @var{number}
|
||||
Set the first PID for PMT (default 0x1000, max 0x1f00).
|
||||
@item -mpegts_start_pid @var{number}
|
||||
Set the first PID for data packets (default 0x0100, max 0x0f00).
|
||||
@end table
|
||||
|
||||
The recognized metadata settings in mpegts muxer are @code{service_provider}
|
||||
and @code{service_name}. If they are not set the default for
|
||||
@code{service_provider} is "FFmpeg" and the default for
|
||||
@code{service_name} is "Service01".
|
||||
|
||||
@example
|
||||
ffmpeg -i file.mpg -acodec copy -vcodec copy \
|
||||
-mpegts_original_network_id 0x1122 \
|
||||
-mpegts_transport_stream_id 0x3344 \
|
||||
-mpegts_service_id 0x5566 \
|
||||
-mpegts_pmt_start_pid 0x1500 \
|
||||
-mpegts_start_pid 0x150 \
|
||||
-metadata service_provider="Some provider" \
|
||||
-metadata service_name="Some Channel" \
|
||||
-y out.ts
|
||||
@end example
|
||||
|
||||
@c man end MUXERS
|
||||
|
||||
@ -21,6 +21,7 @@
|
||||
|
||||
#include "libavutil/bswap.h"
|
||||
#include "libavutil/crc.h"
|
||||
#include "libavutil/opt.h"
|
||||
#include "libavcodec/mpegvideo.h"
|
||||
#include "avformat.h"
|
||||
#include "internal.h"
|
||||
@ -64,8 +65,36 @@ typedef struct MpegTSWrite {
|
||||
int tsid;
|
||||
int64_t first_pcr;
|
||||
int mux_rate; ///< set to 1 when VBR
|
||||
|
||||
int transport_stream_id;
|
||||
int original_network_id;
|
||||
int service_id;
|
||||
|
||||
int pmt_start_pid;
|
||||
int start_pid;
|
||||
} MpegTSWrite;
|
||||
|
||||
static const AVOption options[] = {
|
||||
{ "mpegts_transport_stream_id", "Set transport_stream_id field.",
|
||||
offsetof(MpegTSWrite, transport_stream_id), FF_OPT_TYPE_INT, 0x0001, 0x0001, 0xffff, AV_OPT_FLAG_ENCODING_PARAM},
|
||||
{ "mpegts_original_network_id", "Set original_network_id field.",
|
||||
offsetof(MpegTSWrite, original_network_id), FF_OPT_TYPE_INT, 0x0001, 0x0001, 0xffff, AV_OPT_FLAG_ENCODING_PARAM},
|
||||
{ "mpegts_service_id", "Set service_id field.",
|
||||
offsetof(MpegTSWrite, service_id), FF_OPT_TYPE_INT, 0x0001, 0x0001, 0xffff, AV_OPT_FLAG_ENCODING_PARAM},
|
||||
{ "mpegts_pmt_start_pid", "Set the first pid of the PMT.",
|
||||
offsetof(MpegTSWrite, pmt_start_pid), FF_OPT_TYPE_INT, 0x1000, 0x1000, 0x1f00, AV_OPT_FLAG_ENCODING_PARAM},
|
||||
{ "mpegts_start_pid", "Set the first pid.",
|
||||
offsetof(MpegTSWrite, start_pid), FF_OPT_TYPE_INT, 0x0100, 0x0100, 0x0f00, AV_OPT_FLAG_ENCODING_PARAM},
|
||||
{ NULL },
|
||||
};
|
||||
|
||||
static const AVClass mpegts_muxer_class = {
|
||||
"MPEGTS muxer",
|
||||
av_default_item_name,
|
||||
options,
|
||||
LIBAVUTIL_VERSION_INT,
|
||||
};
|
||||
|
||||
/* NOTE: 4 bytes must be left at the end for the crc32 */
|
||||
static void mpegts_write_section(MpegTSSection *s, uint8_t *buf, int len)
|
||||
{
|
||||
@ -152,16 +181,9 @@ static int mpegts_write_section1(MpegTSSection *s, int tid, int id,
|
||||
/*********************************************/
|
||||
/* mpegts writer */
|
||||
|
||||
#define DEFAULT_PMT_START_PID 0x1000
|
||||
#define DEFAULT_START_PID 0x0100
|
||||
#define DEFAULT_PROVIDER_NAME "FFmpeg"
|
||||
#define DEFAULT_SERVICE_NAME "Service01"
|
||||
|
||||
/* default network id, transport stream and service identifiers */
|
||||
#define DEFAULT_ONID 0x0001
|
||||
#define DEFAULT_TSID 0x0001
|
||||
#define DEFAULT_SID 0x0001
|
||||
|
||||
/* a PES packet header is generated every DEFAULT_PES_HEADER_FREQ packets */
|
||||
#define DEFAULT_PES_HEADER_FREQ 16
|
||||
#define DEFAULT_PES_PAYLOAD_SIZE ((DEFAULT_PES_HEADER_FREQ - 1) * 184 + 170)
|
||||
@ -374,7 +396,7 @@ static MpegTSService *mpegts_add_service(MpegTSWrite *ts,
|
||||
service = av_mallocz(sizeof(MpegTSService));
|
||||
if (!service)
|
||||
return NULL;
|
||||
service->pmt.pid = DEFAULT_PMT_START_PID + ts->nb_services - 1;
|
||||
service->pmt.pid = ts->pmt_start_pid + ts->nb_services;
|
||||
service->sid = sid;
|
||||
service->provider_name = av_strdup(provider_name);
|
||||
service->name = av_strdup(name);
|
||||
@ -401,8 +423,8 @@ static int mpegts_write_header(AVFormatContext *s)
|
||||
const char *provider_name;
|
||||
int *pids;
|
||||
|
||||
ts->tsid = DEFAULT_TSID;
|
||||
ts->onid = DEFAULT_ONID;
|
||||
ts->tsid = ts->transport_stream_id;
|
||||
ts->onid = ts->original_network_id;
|
||||
/* allocate a single DVB service */
|
||||
title = av_metadata_get(s->metadata, "service_name", NULL, 0);
|
||||
if (!title)
|
||||
@ -410,7 +432,7 @@ static int mpegts_write_header(AVFormatContext *s)
|
||||
service_name = title ? title->value : DEFAULT_SERVICE_NAME;
|
||||
provider = av_metadata_get(s->metadata, "service_provider", NULL, 0);
|
||||
provider_name = provider ? provider->value : DEFAULT_PROVIDER_NAME;
|
||||
service = mpegts_add_service(ts, DEFAULT_SID, provider_name, service_name);
|
||||
service = mpegts_add_service(ts, ts->service_id, provider_name, service_name);
|
||||
service->pmt.write_packet = section_write_packet;
|
||||
service->pmt.opaque = s;
|
||||
service->pmt.cc = 15;
|
||||
@ -440,7 +462,7 @@ static int mpegts_write_header(AVFormatContext *s)
|
||||
/* MPEG pid values < 16 are reserved. Applications which set st->id in
|
||||
* this range are assigned a calculated pid. */
|
||||
if (st->id < 16) {
|
||||
ts_st->pid = DEFAULT_START_PID + i;
|
||||
ts_st->pid = ts->start_pid + i;
|
||||
} else if (st->id < 0x1FFF) {
|
||||
ts_st->pid = st->id;
|
||||
} else {
|
||||
@ -964,4 +986,5 @@ AVOutputFormat ff_mpegts_muxer = {
|
||||
mpegts_write_header,
|
||||
mpegts_write_packet,
|
||||
mpegts_write_end,
|
||||
.priv_class = &mpegts_muxer_class,
|
||||
};
|
||||
|
||||
Loading…
Reference in New Issue
Block a user