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rtpdec_h264: Cosmetic cleanup

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Add/fix spacing, split long lines, align assignments where suitable.

Signed-off-by: Diego Biurrun <diego@biurrun.de>
Signed-off-by: Martin Storsjö <martin@martin.st>
This commit is contained in:
Martin Storsjö 2012-05-05 16:42:15 +02:00
parent f3d471f45f
commit 0b3ac9fe05
1 changed files with 71 additions and 66 deletions
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137
libavformat/rtpdec_h264.c
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@ -57,8 +57,8 @@ struct PayloadContext {
#endif #endif
}; };
static int sdp_parse_fmtp_config_h264(AVStream * stream, static int sdp_parse_fmtp_config_h264(AVStream *stream,
PayloadContext * h264_data, PayloadContext *h264_data,
char *attr, char *value) char *attr, char *value)
{ {
AVCodecContext *codec = stream->codec; AVCodecContext *codec = stream->codec;
@ -86,24 +86,28 @@ static int sdp_parse_fmtp_config_h264(AVStream * stream,
uint8_t profile_iop; uint8_t profile_iop;
uint8_t level_idc; uint8_t level_idc;
buffer[0] = value[0]; buffer[1] = value[1]; buffer[2] = '\0'; buffer[0] = value[0];
buffer[1] = value[1];
buffer[2] = '\0';
profile_idc = strtol(buffer, NULL, 16); profile_idc = strtol(buffer, NULL, 16);
buffer[0] = value[2]; buffer[1] = value[3]; buffer[0] = value[2];
buffer[1] = value[3];
profile_iop = strtol(buffer, NULL, 16); profile_iop = strtol(buffer, NULL, 16);
buffer[0] = value[4]; buffer[1] = value[5]; buffer[0] = value[4];
level_idc = strtol(buffer, NULL, 16); buffer[1] = value[5];
level_idc = strtol(buffer, NULL, 16);
av_log(codec, AV_LOG_DEBUG, av_log(codec, AV_LOG_DEBUG,
"RTP Profile IDC: %x Profile IOP: %x Level: %x\n", "RTP Profile IDC: %x Profile IOP: %x Level: %x\n",
profile_idc, profile_iop, level_idc); profile_idc, profile_iop, level_idc);
h264_data->profile_idc = profile_idc; h264_data->profile_idc = profile_idc;
h264_data->profile_iop = profile_iop; h264_data->profile_iop = profile_iop;
h264_data->level_idc = level_idc; h264_data->level_idc = level_idc;
} }
} else if (!strcmp(attr, "sprop-parameter-sets")) { } else if (!strcmp(attr, "sprop-parameter-sets")) {
uint8_t start_sequence[] = { 0, 0, 0, 1 }; uint8_t start_sequence[] = { 0, 0, 0, 1 };
codec->extradata_size= 0; codec->extradata_size = 0;
codec->extradata= NULL; codec->extradata = NULL;
while (*value) { while (*value) {
char base64packet[1024]; char base64packet[1024];
@ -120,49 +124,48 @@ static int sdp_parse_fmtp_config_h264(AVStream * stream,
if (*value == ',') if (*value == ',')
value++; value++;
packet_size= av_base64_decode(decoded_packet, base64packet, sizeof(decoded_packet)); packet_size = av_base64_decode(decoded_packet, base64packet,
sizeof(decoded_packet));
if (packet_size > 0) { if (packet_size > 0) {
uint8_t *dest = av_malloc(packet_size + sizeof(start_sequence) + uint8_t *dest = av_malloc(packet_size + sizeof(start_sequence) +
codec->extradata_size + codec->extradata_size +
FF_INPUT_BUFFER_PADDING_SIZE); FF_INPUT_BUFFER_PADDING_SIZE);
if(dest) if (dest) {
{ if (codec->extradata_size) {
if(codec->extradata_size)
{
memcpy(dest, codec->extradata, codec->extradata_size); memcpy(dest, codec->extradata, codec->extradata_size);
av_free(codec->extradata); av_free(codec->extradata);
} }
memcpy(dest+codec->extradata_size, start_sequence, sizeof(start_sequence)); memcpy(dest + codec->extradata_size, start_sequence,
memcpy(dest+codec->extradata_size+sizeof(start_sequence), decoded_packet, packet_size); sizeof(start_sequence));
memset(dest+codec->extradata_size+sizeof(start_sequence)+ memcpy(dest + codec->extradata_size + sizeof(start_sequence),
decoded_packet, packet_size);
memset(dest + codec->extradata_size + sizeof(start_sequence) +
packet_size, 0, FF_INPUT_BUFFER_PADDING_SIZE); packet_size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
codec->extradata= dest; codec->extradata = dest;
codec->extradata_size+= sizeof(start_sequence)+packet_size; codec->extradata_size += sizeof(start_sequence) + packet_size;
} else { } else {
av_log(codec, AV_LOG_ERROR, "Unable to allocate memory for extradata!"); av_log(codec, AV_LOG_ERROR,
"Unable to allocate memory for extradata!");
return AVERROR(ENOMEM); return AVERROR(ENOMEM);
} }
} }
} }
av_log(codec, AV_LOG_DEBUG, "Extradata set to %p (size: %d)!", codec->extradata, codec->extradata_size); av_log(codec, AV_LOG_DEBUG, "Extradata set to %p (size: %d)!",
codec->extradata, codec->extradata_size);
} }
return 0; return 0;
} }
// return 0 on packet, no more left, 1 on packet, 1 on partial packet // return 0 on packet, no more left, 1 on packet, 1 on partial packet
static int h264_handle_packet(AVFormatContext *ctx, static int h264_handle_packet(AVFormatContext *ctx, PayloadContext *data,
PayloadContext *data, AVStream *st, AVPacket *pkt, uint32_t *timestamp,
AVStream *st, const uint8_t *buf, int len, int flags)
AVPacket * pkt,
uint32_t * timestamp,
const uint8_t * buf,
int len, int flags)
{ {
uint8_t nal; uint8_t nal;
uint8_t type; uint8_t type;
int result= 0; int result = 0;
uint8_t start_sequence[] = { 0, 0, 0, 1 }; uint8_t start_sequence[] = { 0, 0, 0, 1 };
if (!len) { if (!len) {
@ -182,9 +185,9 @@ static int h264_handle_packet(AVFormatContext *ctx,
switch (type) { switch (type) {
case 0: // undefined, but pass them through case 0: // undefined, but pass them through
case 1: case 1:
av_new_packet(pkt, len+sizeof(start_sequence)); av_new_packet(pkt, len + sizeof(start_sequence));
memcpy(pkt->data, start_sequence, sizeof(start_sequence)); memcpy(pkt->data, start_sequence, sizeof(start_sequence));
memcpy(pkt->data+sizeof(start_sequence), buf, len); memcpy(pkt->data + sizeof(start_sequence), buf, len);
#ifdef DEBUG #ifdef DEBUG
data->packet_types_received[nal & 0x1f]++; data->packet_types_received[nal & 0x1f]++;
#endif #endif
@ -196,35 +199,35 @@ static int h264_handle_packet(AVFormatContext *ctx,
len--; len--;
// first we are going to figure out the total size // first we are going to figure out the total size
{ {
int pass= 0; int pass = 0;
int total_length= 0; int total_length = 0;
uint8_t *dst= NULL; uint8_t *dst = NULL;
for(pass= 0; pass<2; pass++) { for (pass = 0; pass < 2; pass++) {
const uint8_t *src= buf; const uint8_t *src = buf;
int src_len= len; int src_len = len;
while (src_len > 2) { while (src_len > 2) {
uint16_t nal_size = AV_RB16(src); uint16_t nal_size = AV_RB16(src);
// consume the length of the aggregate // consume the length of the aggregate
src += 2; src += 2;
src_len -= 2; src_len -= 2;
if (nal_size <= src_len) { if (nal_size <= src_len) {
if(pass==0) { if (pass == 0) {
// counting // counting
total_length+= sizeof(start_sequence)+nal_size; total_length += sizeof(start_sequence) + nal_size;
} else { } else {
// copying // copying
assert(dst); assert(dst);
memcpy(dst, start_sequence, sizeof(start_sequence)); memcpy(dst, start_sequence, sizeof(start_sequence));
dst+= sizeof(start_sequence); dst += sizeof(start_sequence);
memcpy(dst, src, nal_size); memcpy(dst, src, nal_size);
#ifdef DEBUG #ifdef DEBUG
data->packet_types_received[*src & 0x1f]++; data->packet_types_received[*src & 0x1f]++;
#endif #endif
dst+= nal_size; dst += nal_size;
} }
} else { } else {
av_log(ctx, AV_LOG_ERROR, av_log(ctx, AV_LOG_ERROR,
@ -232,7 +235,7 @@ static int h264_handle_packet(AVFormatContext *ctx,
} }
// eat what we handled // eat what we handled
src += nal_size; src += nal_size;
src_len -= nal_size; src_len -= nal_size;
if (src_len < 0) if (src_len < 0)
@ -240,13 +243,13 @@ static int h264_handle_packet(AVFormatContext *ctx,
"Consumed more bytes than we got! (%d)\n", src_len); "Consumed more bytes than we got! (%d)\n", src_len);
} }
if(pass==0) { if (pass == 0) {
/* now we know the total size of the packet (with the /* now we know the total size of the packet (with the
* start sequences added) */ * start sequences added) */
av_new_packet(pkt, total_length); av_new_packet(pkt, total_length);
dst= pkt->data; dst = pkt->data;
} else { } else {
assert(dst-pkt->data==total_length); assert(dst - pkt->data == total_length);
} }
} }
} }
@ -267,17 +270,17 @@ static int h264_handle_packet(AVFormatContext *ctx,
len--; // skip the fu_indicator len--; // skip the fu_indicator
if (len > 1) { if (len > 1) {
// these are the same as above, we just redo them here for clarity // these are the same as above, we just redo them here for clarity
uint8_t fu_indicator = nal; uint8_t fu_indicator = nal;
uint8_t fu_header = *buf; uint8_t fu_header = *buf;
uint8_t start_bit = fu_header >> 7; uint8_t start_bit = fu_header >> 7;
uint8_t av_unused end_bit = (fu_header & 0x40) >> 6; uint8_t av_unused end_bit = (fu_header & 0x40) >> 6;
uint8_t nal_type = (fu_header & 0x1f); uint8_t nal_type = fu_header & 0x1f;
uint8_t reconstructed_nal; uint8_t reconstructed_nal;
// Reconstruct this packet's true nal; only the data follows. // Reconstruct this packet's true nal; only the data follows.
/* The original nal forbidden bit and NRI are stored in this /* The original nal forbidden bit and NRI are stored in this
* packet's nal. */ * packet's nal. */
reconstructed_nal = fu_indicator & (0xe0); reconstructed_nal = fu_indicator & 0xe0;
reconstructed_nal |= nal_type; reconstructed_nal |= nal_type;
// skip the fu_header // skip the fu_header
@ -288,12 +291,12 @@ static int h264_handle_packet(AVFormatContext *ctx,
if (start_bit) if (start_bit)
data->packet_types_received[nal_type]++; data->packet_types_received[nal_type]++;
#endif #endif
if(start_bit) { if (start_bit) {
/* copy in the start sequence, and the reconstructed nal */ /* copy in the start sequence, and the reconstructed nal */
av_new_packet(pkt, sizeof(start_sequence)+sizeof(nal)+len); av_new_packet(pkt, sizeof(start_sequence) + sizeof(nal) + len);
memcpy(pkt->data, start_sequence, sizeof(start_sequence)); memcpy(pkt->data, start_sequence, sizeof(start_sequence));
pkt->data[sizeof(start_sequence)]= reconstructed_nal; pkt->data[sizeof(start_sequence)] = reconstructed_nal;
memcpy(pkt->data+sizeof(start_sequence)+sizeof(nal), buf, len); memcpy(pkt->data + sizeof(start_sequence) + sizeof(nal), buf, len);
} else { } else {
av_new_packet(pkt, len); av_new_packet(pkt, len);
memcpy(pkt->data, buf, len); memcpy(pkt->data, buf, len);
@ -348,25 +351,27 @@ static int parse_h264_sdp_line(AVFormatContext *s, int st_index,
return 0; return 0;
stream = s->streams[st_index]; stream = s->streams[st_index];
codec = stream->codec; codec = stream->codec;
if (av_strstart(p, "framesize:", &p)) { if (av_strstart(p, "framesize:", &p)) {
char buf1[50]; char buf1[50];
char *dst = buf1; char *dst = buf1;
// remove the protocol identifier // remove the protocol identifier
while (*p && *p == ' ') p++; // strip spaces. while (*p && *p == ' ')
while (*p && *p != ' ') p++; // eat protocol identifier p++; // strip spaces.
while (*p && *p == ' ') p++; // strip trailing spaces. while (*p && *p != ' ')
while (*p && *p != '-' && (dst - buf1) < sizeof(buf1) - 1) { p++; // eat protocol identifier
while (*p && *p == ' ')
p++; // strip trailing spaces.
while (*p && *p != '-' && (dst - buf1) < sizeof(buf1) - 1)
*dst++ = *p++; *dst++ = *p++;
}
*dst = '\0'; *dst = '\0';
// a='framesize:96 320-240' // a='framesize:96 320-240'
// set our parameters // set our parameters
codec->width = atoi(buf1); codec->width = atoi(buf1);
codec->height = atoi(p + 1); // skip the - codec->height = atoi(p + 1); // skip the -
codec->pix_fmt = PIX_FMT_YUV420P; codec->pix_fmt = PIX_FMT_YUV420P;
} else if (av_strstart(p, "fmtp:", &p)) { } else if (av_strstart(p, "fmtp:", &p)) {
return ff_parse_fmtp(stream, h264_data, p, sdp_parse_fmtp_config_h264); return ff_parse_fmtp(stream, h264_data, p, sdp_parse_fmtp_config_h264);