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avconv: replace no_packet array in transcode() with a var in InputStream 

This simplifies splitting code for reading from input out of
transcode().
This commit is contained in:
Anton Khirnov 2012-08-04 12:04:02 +02:00
parent bed43d58b0
commit 0b26ef4228
2 changed files with 24 additions and 16 deletions
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39
avconv.c
View File

@ -1954,7 +1954,7 @@ static int need_output(void)
return 0;
}
static int select_input_file(uint8_t *no_packet)
static int select_input_file(void)
{
int64_t ipts_min = INT64_MAX;
int i, file_index = -1;
@ -1963,7 +1963,7 @@ static int select_input_file(uint8_t *no_packet)
InputStream *ist = input_streams[i];
int64_t ipts = ist->last_dts;
if (ist->discard || no_packet[ist->file_index])
if (ist->discard || input_files[ist->file_index]->eagain)
continue;
if (!input_files[ist->file_index]->eof_reached) {
if (ipts < ipts_min) {
@ -2095,6 +2095,22 @@ static int get_input_packet(InputFile *f, AVPacket *pkt)
return av_read_frame(f->ctx, pkt);
}
static int got_eagain(void)
{
int i;
for (i = 0; i < nb_input_files; i++)
if (input_files[i]->eagain)
return 1;
return 0;
}
static void reset_eagain(void)
{
int i;
for (i = 0; i < nb_input_files; i++)
input_files[i]->eagain = 0;
}
/*
* The following code is the main loop of the file converter
*/
@ -2104,13 +2120,8 @@ static int transcode(void)
AVFormatContext *is, *os;
OutputStream *ost;
InputStream *ist;
uint8_t *no_packet;
int no_packet_count = 0;
int64_t timer_start;
if (!(no_packet = av_mallocz(nb_input_files)))
exit_program(1);
ret = transcode_init();
if (ret < 0)
goto fail;
@ -2136,12 +2147,11 @@ static int transcode(void)
}
/* select the stream that we must read now */
file_index = select_input_file(no_packet);
file_index = select_input_file();
/* if none, if is finished */
if (file_index < 0) {
if (no_packet_count) {
no_packet_count = 0;
memset(no_packet, 0, nb_input_files);
if (got_eagain()) {
reset_eagain();
av_usleep(10000);
continue;
}
@ -2153,8 +2163,7 @@ static int transcode(void)
ret = get_input_packet(input_files[file_index], &pkt);
if (ret == AVERROR(EAGAIN)) {
no_packet[file_index] = 1;
no_packet_count++;
input_files[file_index]->eagain = 1;
continue;
}
if (ret < 0) {
@ -2177,8 +2186,7 @@ static int transcode(void)
continue;
}
no_packet_count = 0;
memset(no_packet, 0, nb_input_files);
reset_eagain();
if (do_pkt_dump) {
av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
@ -2279,7 +2287,6 @@ static int transcode(void)
ret = 0;
fail:
av_freep(&no_packet);
#if HAVE_PTHREADS
free_input_threads();
#endif

1
avconv.h
View File

@ -230,6 +230,7 @@ typedef struct InputStream {
typedef struct InputFile {
AVFormatContext *ctx;
int eof_reached; /* true if eof reached */
int eagain; /* true if last read attempt returned EAGAIN */
int ist_index; /* index of first stream in ist_table */
int64_t ts_offset;
int nb_streams; /* number of stream that avconv is aware of; may be different