Commit b7b1bf91 authored by Diego Biurrun's avatar Diego Biurrun

mpegts: K&R formatting cosmetics

parent bb789016
......@@ -25,7 +25,9 @@
#include "libavutil/intreadwrite.h"
#include "libavutil/mathematics.h"
#include "libavutil/opt.h"
#include "libavcodec/internal.h"
#include "avformat.h"
#include "internal.h"
#include "mpegts.h"
......@@ -102,7 +104,9 @@ static void mpegts_write_section(MpegTSSection *s, uint8_t *buf, int len)
unsigned char *q;
int first, b, len1, left;
crc = av_bswap32(av_crc(av_crc_get_table(AV_CRC_32_IEEE), -1, buf, len - 4));
crc = av_bswap32(av_crc(av_crc_get_table(AV_CRC_32_IEEE),
-1, buf, len - 4));
buf[len - 4] = (crc >> 24) & 0xff;
buf[len - 3] = (crc >> 16) & 0xff;
buf[len - 2] = (crc >> 8) & 0xff;
......@@ -209,7 +213,7 @@ static void mpegts_write_pat(AVFormatContext *s)
int i;
q = data;
for(i = 0; i < ts->nb_services; i++) {
for (i = 0; i < ts->nb_services; i++) {
service = ts->services[i];
put16(&q, service->sid);
put16(&q, 0xe000 | service->pmt.pid);
......@@ -236,11 +240,11 @@ static void mpegts_write_pmt(AVFormatContext *s, MpegTSService *service)
program_info_length_ptr[0] = val >> 8;
program_info_length_ptr[1] = val;
for(i = 0; i < s->nb_streams; i++) {
for (i = 0; i < s->nb_streams; i++) {
AVStream *st = s->streams[i];
MpegTSWriteStream *ts_st = st->priv_data;
AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0);
switch(st->codec->codec_id) {
AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL, 0);
switch (st->codec->codec_id) {
case AV_CODEC_ID_MPEG1VIDEO:
case AV_CODEC_ID_MPEG2VIDEO:
stream_type = STREAM_TYPE_VIDEO_MPEG2;
......@@ -265,7 +269,9 @@ static void mpegts_write_pmt(AVFormatContext *s, MpegTSService *service)
stream_type = STREAM_TYPE_AUDIO_MPEG1;
break;
case AV_CODEC_ID_AAC:
stream_type = (ts->flags & MPEGTS_FLAG_AAC_LATM) ? STREAM_TYPE_AUDIO_AAC_LATM : STREAM_TYPE_AUDIO_AAC;
stream_type = (ts->flags & MPEGTS_FLAG_AAC_LATM)
? STREAM_TYPE_AUDIO_AAC_LATM
: STREAM_TYPE_AUDIO_AAC;
break;
case AV_CODEC_ID_AAC_LATM:
stream_type = STREAM_TYPE_AUDIO_AAC_LATM;
......@@ -283,7 +289,7 @@ static void mpegts_write_pmt(AVFormatContext *s, MpegTSService *service)
q += 2; /* patched after */
/* write optional descriptors here */
switch(st->codec->codec_type) {
switch (st->codec->codec_type) {
case AVMEDIA_TYPE_AUDIO:
if (lang) {
char *p;
......@@ -322,14 +328,14 @@ static void mpegts_write_pmt(AVFormatContext *s, MpegTSService *service)
case AVMEDIA_TYPE_SUBTITLE:
{
const char *language;
language = lang && strlen(lang->value)==3 ? lang->value : "eng";
language = lang && strlen(lang->value) == 3 ? lang->value : "eng";
*q++ = 0x59;
*q++ = 8;
*q++ = language[0];
*q++ = language[1];
*q++ = language[2];
*q++ = 0x10; /* normal subtitles (0x20 = if hearing pb) */
if(st->codec->extradata_size == 4) {
if (st->codec->extradata_size == 4) {
memcpy(q, st->codec->extradata, 4);
q += 4;
} else {
......@@ -385,7 +391,7 @@ static void mpegts_write_sdt(AVFormatContext *s)
q = data;
put16(&q, ts->onid);
*q++ = 0xff;
for(i = 0; i < ts->nb_services; i++) {
for (i = 0; i < ts->nb_services; i++) {
service = ts->services[i];
put16(&q, service->sid);
*q++ = 0xfc | 0x00; /* currently no EIT info */
......@@ -413,8 +419,7 @@ static void mpegts_write_sdt(AVFormatContext *s)
data, q - data);
}
static MpegTSService *mpegts_add_service(MpegTSWrite *ts,
int sid,
static MpegTSService *mpegts_add_service(MpegTSWrite *ts, int sid,
const char *provider_name,
const char *name)
{
......@@ -466,13 +471,17 @@ static int mpegts_write_header(AVFormatContext *s)
service_name = title ? title->value : DEFAULT_SERVICE_NAME;
provider = av_dict_get(s->metadata, "service_provider", NULL, 0);
provider_name = provider ? provider->value : DEFAULT_PROVIDER_NAME;
service = mpegts_add_service(ts, ts->service_id, 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;
ts->pat.pid = PAT_PID;
ts->pat.cc = 15; // Initialize at 15 so that it wraps and be equal to 0 for the first packet we write
/* Initialize at 15 so that it wraps and is equal to 0 for the
* first packet we write. */
ts->pat.cc = 15;
ts->pat.write_packet = section_write_packet;
ts->pat.opaque = s;
......@@ -486,7 +495,7 @@ static int mpegts_write_header(AVFormatContext *s)
return AVERROR(ENOMEM);
/* assign pids to each stream */
for(i = 0;i < s->nb_streams; i++) {
for (i = 0; i < s->nb_streams; i++) {
st = s->streams[i];
ts_st = av_mallocz(sizeof(MpegTSWriteStream));
......@@ -512,7 +521,8 @@ static int mpegts_write_header(AVFormatContext *s)
} else if (st->id < 0x1FFF) {
ts_st->pid = st->id;
} else {
av_log(s, AV_LOG_ERROR, "Invalid stream id %d, must be less than 8191\n", st->id);
av_log(s, AV_LOG_ERROR,
"Invalid stream id %d, must be less than 8191\n", st->id);
ret = AVERROR(EINVAL);
goto fail;
}
......@@ -521,12 +531,13 @@ static int mpegts_write_header(AVFormatContext *s)
ret = AVERROR(EINVAL);
goto fail;
}
for (j = 0; j < i; j++)
for (j = 0; j < i; j++) {
if (pids[j] == ts_st->pid) {
av_log(s, AV_LOG_ERROR, "Duplicate stream id %d\n", ts_st->pid);
ret = AVERROR(EINVAL);
goto fail;
}
}
pids[i] = ts_st->pid;
ts_st->payload_pts = AV_NOPTS_VALUE;
ts_st->payload_dts = AV_NOPTS_VALUE;
......@@ -539,15 +550,16 @@ static int mpegts_write_header(AVFormatContext *s)
pcr_st = st;
}
if (st->codec->codec_id == AV_CODEC_ID_AAC &&
st->codec->extradata_size > 0)
{
st->codec->extradata_size > 0) {
AVStream *ast;
ts_st->amux = avformat_alloc_context();
if (!ts_st->amux) {
ret = AVERROR(ENOMEM);
goto fail;
}
ts_st->amux->oformat = av_guess_format((ts->flags & MPEGTS_FLAG_AAC_LATM) ? "latm" : "adts", NULL, NULL);
ts_st->amux->oformat =
av_guess_format((ts->flags & MPEGTS_FLAG_AAC_LATM) ? "latm" : "adts",
NULL, NULL);
if (!ts_st->amux->oformat) {
ret = AVERROR(EINVAL);
goto fail;
......@@ -589,10 +601,10 @@ static int mpegts_write_header(AVFormatContext *s)
if (!pcr_st->codec->frame_size) {
av_log(s, AV_LOG_WARNING, "frame size not set\n");
service->pcr_packet_period =
pcr_st->codec->sample_rate/(10*512);
pcr_st->codec->sample_rate / (10 * 512);
} else {
service->pcr_packet_period =
pcr_st->codec->sample_rate/(10*pcr_st->codec->frame_size);
pcr_st->codec->sample_rate / (10 * pcr_st->codec->frame_size);
}
} else {
// max delta PCR 0.1s
......@@ -604,15 +616,15 @@ static int mpegts_write_header(AVFormatContext *s)
// output a PCR as soon as possible
service->pcr_packet_count = service->pcr_packet_period;
ts->pat_packet_count = ts->pat_packet_period-1;
ts->sdt_packet_count = ts->sdt_packet_period-1;
ts->pat_packet_count = ts->pat_packet_period - 1;
ts->sdt_packet_count = ts->sdt_packet_period - 1;
if (ts->mux_rate == 1)
av_log(s, AV_LOG_VERBOSE, "muxrate VBR, ");
else
av_log(s, AV_LOG_VERBOSE, "muxrate %d, ", ts->mux_rate);
av_log(s, AV_LOG_VERBOSE, "pcr every %d pkts, "
"sdt every %d, pat/pmt every %d pkts\n",
av_log(s, AV_LOG_VERBOSE,
"pcr every %d pkts, sdt every %d, pat/pmt every %d pkts\n",
service->pcr_packet_period,
ts->sdt_packet_period, ts->pat_packet_period);
......@@ -620,9 +632,9 @@ static int mpegts_write_header(AVFormatContext *s)
return 0;
fail:
fail:
av_free(pids);
for(i = 0;i < s->nb_streams; i++) {
for (i = 0; i < s->nb_streams; i++) {
MpegTSWriteStream *ts_st;
st = s->streams[i];
ts_st = st->priv_data;
......@@ -651,10 +663,9 @@ static void retransmit_si_info(AVFormatContext *s)
if (++ts->pat_packet_count == ts->pat_packet_period) {
ts->pat_packet_count = 0;
mpegts_write_pat(s);
for(i = 0; i < ts->nb_services; i++) {
for (i = 0; i < ts->nb_services; i++)
mpegts_write_pmt(s, ts->services[i]);
}
}
}
static int64_t get_pcr(const MpegTSWrite *ts, AVIOContext *pb)
......@@ -764,11 +775,10 @@ static uint8_t *get_ts_payload_start(uint8_t *pkt)
return pkt + 4;
}
/* Add a pes header to the front of payload, and segment into an integer number of
* ts packets. The final ts packet is padded using an over-sized adaptation header
* to exactly fill the last ts packet.
* NOTE: 'payload' contains a complete PES payload.
*/
/* Add a PES header to the front of the payload, and segment into an integer
* number of TS packets. The final TS packet is padded using an oversized
* adaptation header to exactly fill the last TS packet.
* NOTE: 'payload' contains a complete PES payload. */
static void mpegts_write_pes(AVFormatContext *s, AVStream *st,
const uint8_t *payload, int payload_size,
int64_t pts, int64_t dts, int key)
......@@ -798,13 +808,14 @@ static void mpegts_write_pes(AVFormatContext *s, AVStream *st,
}
if (ts->mux_rate > 1 && dts != AV_NOPTS_VALUE &&
(dts - get_pcr(ts, s->pb)/300) > delay) {
(dts - get_pcr(ts, s->pb) / 300) > delay) {
/* pcr insert gets priority over null packet insert */
if (write_pcr)
mpegts_insert_pcr_only(s, st);
else
mpegts_insert_null_packet(s);
continue; /* recalculate write_pcr and possibly retransmit si_info */
/* recalculate write_pcr and possibly retransmit si_info */
continue;
}
/* prepare packet header */
......@@ -831,7 +842,7 @@ static void mpegts_write_pes(AVFormatContext *s, AVStream *st,
if (ts->mux_rate > 1)
pcr = get_pcr(ts, s->pb);
else
pcr = (dts - delay)*300;
pcr = (dts - delay) * 300;
if (dts != AV_NOPTS_VALUE && dts < pcr / 300)
av_log(s, AV_LOG_WARNING, "dts < pcr, TS is invalid\n");
extend_af(buf, write_pcr_bits(q, pcr));
......@@ -845,9 +856,9 @@ static void mpegts_write_pes(AVFormatContext *s, AVStream *st,
*q++ = 0x01;
private_code = 0;
if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
if (st->codec->codec_id == AV_CODEC_ID_DIRAC) {
if (st->codec->codec_id == AV_CODEC_ID_DIRAC)
*q++ = 0xfd;
} else
else
*q++ = 0xe0;
} else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
(st->codec->codec_id == AV_CODEC_ID_MP2 ||
......@@ -856,10 +867,9 @@ static void mpegts_write_pes(AVFormatContext *s, AVStream *st,
*q++ = 0xc0;
} else {
*q++ = 0xbd;
if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE)
private_code = 0x20;
}
}
header_len = 0;
flags = 0;
if (pts != AV_NOPTS_VALUE) {
......@@ -876,11 +886,9 @@ static void mpegts_write_pes(AVFormatContext *s, AVStream *st,
pes_extension = 1;
flags |= 0x01;
/*
* One byte for PES2 extension flag +
/* One byte for PES2 extension flag +
* one byte for extension length +
* one byte for extension id
*/
* one byte for extension id */
header_len += 3;
}
len = payload_size + header_len + 3;
......@@ -909,10 +917,8 @@ static void mpegts_write_pes(AVFormatContext *s, AVStream *st,
flags = 0x01; /* set PES_extension_flag_2 */
*q++ = flags;
*q++ = 0x80 | 0x01; /* marker bit + extension length */
/*
* Set the stream id extension flag bit to 0 and
* write the extended stream id
*/
/* Set the stream ID extension flag bit to 0 and
* write the extended stream ID. */
*q++ = 0x00 | 0x60;
}
if (private_code != 0)
......@@ -959,15 +965,16 @@ static int mpegts_write_packet_internal(AVFormatContext *s, AVPacket *pkt)
{
AVStream *st = s->streams[pkt->stream_index];
int size = pkt->size;
uint8_t *buf= pkt->data;
uint8_t *data= NULL;
uint8_t *buf = pkt->data;
uint8_t *data = NULL;
MpegTSWrite *ts = s->priv_data;
MpegTSWriteStream *ts_st = st->priv_data;
const uint64_t delay = av_rescale(s->max_delay, 90000, AV_TIME_BASE)*2;
const uint64_t delay = av_rescale(s->max_delay, 90000, AV_TIME_BASE) * 2;
int64_t dts = AV_NOPTS_VALUE, pts = AV_NOPTS_VALUE;
if (ts->reemit_pat_pmt) {
av_log(s, AV_LOG_WARNING, "resend_headers option is deprecated, use -mpegts_flags resend_headers\n");
av_log(s, AV_LOG_WARNING,
"resend_headers option is deprecated, use -mpegts_flags resend_headers\n");
ts->reemit_pat_pmt = 0;
ts->flags |= MPEGTS_FLAG_REEMIT_PAT_PMT;
}
......@@ -990,7 +997,7 @@ static int mpegts_write_packet_internal(AVFormatContext *s, AVPacket *pkt)
ts_st->first_pts_check = 0;
if (st->codec->codec_id == AV_CODEC_ID_H264) {
const uint8_t *p = buf, *buf_end = p+size;
const uint8_t *p = buf, *buf_end = p + size;
uint32_t state = -1;
if (pkt->size < 5 || AV_RB32(pkt->data) != 0x0000001) {
......@@ -1006,15 +1013,15 @@ static int mpegts_write_packet_internal(AVFormatContext *s, AVPacket *pkt)
(state & 0x1f) != 5 && (state & 0x1f) != 1);
if ((state & 0x1f) != 9) { // AUD NAL
data = av_malloc(pkt->size+6);
data = av_malloc(pkt->size + 6);
if (!data)
return AVERROR(ENOMEM);
memcpy(data+6, pkt->data, pkt->size);
memcpy(data + 6, pkt->data, pkt->size);
AV_WB32(data, 0x00000001);
data[4] = 0x09;
data[5] = 0xf0; // any slice type (0xe) + rbsp stop one bit
buf = data;
size = pkt->size+6;
size = pkt->size + 6;
}
} else if (st->codec->codec_id == AV_CODEC_ID_AAC) {
if (pkt->size < 2) {
......@@ -1034,6 +1041,7 @@ static int mpegts_write_packet_internal(AVFormatContext *s, AVPacket *pkt)
av_init_packet(&pkt2);
pkt2.data = pkt->data;
pkt2.size = pkt->size;
ret = avio_open_dyn_buf(&ts_st->amux->pb);
if (ret < 0)
return AVERROR(ENOMEM);
......@@ -1053,7 +1061,8 @@ static int mpegts_write_packet_internal(AVFormatContext *s, AVPacket *pkt)
if (st->codec->codec_type != AVMEDIA_TYPE_AUDIO) {
// for video and subtitle, write a single pes packet
mpegts_write_pes(s, st, buf, size, pts, dts, pkt->flags & AV_PKT_FLAG_KEY);
mpegts_write_pes(s, st, buf, size, pts, dts,
pkt->flags & AV_PKT_FLAG_KEY);
av_free(data);
return 0;
}
......@@ -1092,7 +1101,7 @@ static void mpegts_write_flush(AVFormatContext *s)
int i;
/* flush current packets */
for(i = 0; i < s->nb_streams; i++) {
for (i = 0; i < s->nb_streams; i++) {
AVStream *st = s->streams[i];
MpegTSWriteStream *ts_st = st->priv_data;
if (ts_st->payload_size > 0) {
......@@ -1123,7 +1132,7 @@ static int mpegts_write_end(AVFormatContext *s)
mpegts_write_flush(s);
for(i = 0; i < s->nb_streams; i++) {
for (i = 0; i < s->nb_streams; i++) {
AVStream *st = s->streams[i];
MpegTSWriteStream *ts_st = st->priv_data;
av_freep(&ts_st->payload);
......@@ -1133,7 +1142,7 @@ static int mpegts_write_end(AVFormatContext *s)
}
}
for(i = 0; i < ts->nb_services; i++) {
for (i = 0; i < ts->nb_services; i++) {
service = ts->services[i];
av_freep(&service->provider_name);
av_freep(&service->name);
......@@ -1146,31 +1155,42 @@ static int mpegts_write_end(AVFormatContext *s)
static const AVOption options[] = {
{ "mpegts_transport_stream_id", "Set transport_stream_id field.",
offsetof(MpegTSWrite, transport_stream_id), AV_OPT_TYPE_INT, {.i64 = 0x0001 }, 0x0001, 0xffff, AV_OPT_FLAG_ENCODING_PARAM},
offsetof(MpegTSWrite, transport_stream_id), AV_OPT_TYPE_INT,
{ .i64 = 0x0001 }, 0x0001, 0xffff, AV_OPT_FLAG_ENCODING_PARAM },
{ "mpegts_original_network_id", "Set original_network_id field.",
offsetof(MpegTSWrite, original_network_id), AV_OPT_TYPE_INT, {.i64 = 0x0001 }, 0x0001, 0xffff, AV_OPT_FLAG_ENCODING_PARAM},
offsetof(MpegTSWrite, original_network_id), AV_OPT_TYPE_INT,
{ .i64 = 0x0001 }, 0x0001, 0xffff, AV_OPT_FLAG_ENCODING_PARAM },
{ "mpegts_service_id", "Set service_id field.",
offsetof(MpegTSWrite, service_id), AV_OPT_TYPE_INT, {.i64 = 0x0001 }, 0x0001, 0xffff, AV_OPT_FLAG_ENCODING_PARAM},
offsetof(MpegTSWrite, service_id), AV_OPT_TYPE_INT,
{ .i64 = 0x0001 }, 0x0001, 0xffff, AV_OPT_FLAG_ENCODING_PARAM },
{ "mpegts_pmt_start_pid", "Set the first pid of the PMT.",
offsetof(MpegTSWrite, pmt_start_pid), AV_OPT_TYPE_INT, {.i64 = 0x1000 }, 0x1000, 0x1f00, AV_OPT_FLAG_ENCODING_PARAM},
offsetof(MpegTSWrite, pmt_start_pid), AV_OPT_TYPE_INT,
{ .i64 = 0x1000 }, 0x1000, 0x1f00, AV_OPT_FLAG_ENCODING_PARAM },
{ "mpegts_start_pid", "Set the first pid.",
offsetof(MpegTSWrite, start_pid), AV_OPT_TYPE_INT, {.i64 = 0x0100 }, 0x0100, 0x0f00, AV_OPT_FLAG_ENCODING_PARAM},
{ "muxrate", NULL, offsetof(MpegTSWrite, mux_rate), AV_OPT_TYPE_INT, {.i64 = 1}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
offsetof(MpegTSWrite, start_pid), AV_OPT_TYPE_INT,
{ .i64 = 0x0100 }, 0x0100, 0x0f00, AV_OPT_FLAG_ENCODING_PARAM },
{ "muxrate", NULL,
offsetof(MpegTSWrite, mux_rate), AV_OPT_TYPE_INT,
{ .i64 = 1 }, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM },
{ "pes_payload_size", "Minimum PES packet payload in bytes",
offsetof(MpegTSWrite, pes_payload_size), AV_OPT_TYPE_INT, {.i64 = DEFAULT_PES_PAYLOAD_SIZE}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
{ "mpegts_flags", "MPEG-TS muxing flags", offsetof(MpegTSWrite, flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, 0, INT_MAX,
offsetof(MpegTSWrite, pes_payload_size), AV_OPT_TYPE_INT,
{ .i64 = DEFAULT_PES_PAYLOAD_SIZE }, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM },
{ "mpegts_flags", "MPEG-TS muxing flags",
offsetof(MpegTSWrite, flags), AV_OPT_TYPE_FLAGS, { .i64 = 0 }, 0, INT_MAX,
AV_OPT_FLAG_ENCODING_PARAM, "mpegts_flags" },
{ "resend_headers", "Reemit PAT/PMT before writing the next packet",
0, AV_OPT_TYPE_CONST, {.i64 = MPEGTS_FLAG_REEMIT_PAT_PMT}, 0, INT_MAX,
AV_OPT_FLAG_ENCODING_PARAM, "mpegts_flags"},
0, AV_OPT_TYPE_CONST, { .i64 = MPEGTS_FLAG_REEMIT_PAT_PMT }, 0, INT_MAX,
AV_OPT_FLAG_ENCODING_PARAM, "mpegts_flags" },
{ "latm", "Use LATM packetization for AAC",
0, AV_OPT_TYPE_CONST, {.i64 = MPEGTS_FLAG_AAC_LATM}, 0, INT_MAX,
AV_OPT_FLAG_ENCODING_PARAM, "mpegts_flags"},
0, AV_OPT_TYPE_CONST, { .i64 = MPEGTS_FLAG_AAC_LATM }, 0, INT_MAX,
AV_OPT_FLAG_ENCODING_PARAM, "mpegts_flags" },
// backward compatibility
{ "resend_headers", "Reemit PAT/PMT before writing the next packet",
offsetof(MpegTSWrite, reemit_pat_pmt), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
offsetof(MpegTSWrite, reemit_pat_pmt), AV_OPT_TYPE_INT,
{ .i64 = 0 }, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM },
{ "pcr_period", "PCR retransmission time",
offsetof(MpegTSWrite, pcr_period), AV_OPT_TYPE_INT, { .i64 = PCR_RETRANS_TIME }, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM },
offsetof(MpegTSWrite, pcr_period), AV_OPT_TYPE_INT,
{ .i64 = PCR_RETRANS_TIME }, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM },
{ NULL },
};
......
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