configure: Only disable aligned stack on MSVC on 32 bit
[ffmpeg.git] / avconv.c
index 416c07c..ea73606 100644 (file)
--- a/avconv.c
+++ b/avconv.c
@@ -183,6 +183,7 @@ void exit_program(int ret)
 
         av_freep(&output_streams[i]->forced_keyframes);
         av_freep(&output_streams[i]->avfilter);
+        av_freep(&output_streams[i]->logfile_prefix);
         av_freep(&output_streams[i]->filtered_frame);
         av_freep(&output_streams[i]);
     }
@@ -345,7 +346,7 @@ static int check_recording_time(OutputStream *ost)
     if (of->recording_time != INT64_MAX &&
         av_compare_ts(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, of->recording_time,
                       AV_TIME_BASE_Q) >= 0) {
-        ost->is_past_recording_time = 1;
+        ost->finished = 1;
         return 0;
     }
     return 1;
@@ -719,7 +720,7 @@ static int poll_filter(OutputStream *ost)
  */
 static int poll_filters(void)
 {
-    int i, ret = 0;
+    int i, j, ret = 0;
 
     while (ret >= 0 && !received_sigterm) {
         OutputStream *ost = NULL;
@@ -729,8 +730,7 @@ static int poll_filters(void)
         for (i = 0; i < nb_output_streams; i++) {
             int64_t pts = output_streams[i]->sync_opts;
 
-            if (!output_streams[i]->filter ||
-                output_streams[i]->is_past_recording_time)
+            if (!output_streams[i]->filter || output_streams[i]->finished)
                 continue;
 
             pts = av_rescale_q(pts, output_streams[i]->st->codec->time_base,
@@ -747,10 +747,14 @@ static int poll_filters(void)
         ret = poll_filter(ost);
 
         if (ret == AVERROR_EOF) {
-            ost->is_past_recording_time = 1;
+            OutputFile *of = output_files[ost->file_index];
 
-            if (opt_shortest)
-                return ret;
+            ost->finished = 1;
+
+            if (of->shortest) {
+                for (j = 0; j < of->ctx->nb_streams; j++)
+                    output_streams[of->ost_index + j]->finished = 1;
+            }
 
             ret = 0;
         } else if (ret == AVERROR(EAGAIN))
@@ -821,7 +825,7 @@ static void print_report(int is_last_report, int64_t timer_start)
                 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
                     qp_histogram[qp]++;
                 for (j = 0; j < 32; j++)
-                    snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j] + 1) / log(2)));
+                    snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1)));
             }
             if (enc->flags&CODEC_FLAG_PSNR) {
                 int j;
@@ -983,7 +987,7 @@ static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *p
 
     if (of->recording_time != INT64_MAX &&
         ist->last_dts >= of->recording_time + of->start_time) {
-        ost->is_past_recording_time = 1;
+        ost->finished = 1;
         return;
     }
 
@@ -1069,15 +1073,11 @@ static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
     decoded_frame = ist->decoded_frame;
 
     ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
-    if (ret < 0) {
-        return ret;
-    }
-
-    if (!*got_output) {
-        /* no audio frame */
-        if (!pkt->size)
+    if (!*got_output || ret < 0) {
+        if (!pkt->size) {
             for (i = 0; i < ist->nb_filters; i++)
                 av_buffersrc_buffer(ist->filters[i]->filter, NULL);
+        }
         return ret;
     }
 
@@ -1216,17 +1216,15 @@ static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
 
     ret = avcodec_decode_video2(ist->st->codec,
                                 decoded_frame, got_output, pkt);
-    if (ret < 0)
-        return ret;
-
-    quality = same_quant ? decoded_frame->quality : 0;
-    if (!*got_output) {
-        /* no picture yet */
-        if (!pkt->size)
+    if (!*got_output || ret < 0) {
+        if (!pkt->size) {
             for (i = 0; i < ist->nb_filters; i++)
                 av_buffersrc_buffer(ist->filters[i]->filter, NULL);
+        }
         return ret;
     }
+
+    quality = same_quant ? decoded_frame->quality : 0;
     decoded_frame->pts = guess_correct_pts(&ist->pts_ctx, decoded_frame->pkt_pts,
                                            decoded_frame->pkt_dts);
     pkt->size = 0;
@@ -1530,7 +1528,7 @@ static int transcode_init(void)
 {
     int ret = 0, i, j, k;
     AVFormatContext *oc;
-    AVCodecContext *codec, *icodec;
+    AVCodecContext *codec;
     OutputStream *ost;
     InputStream *ist;
     char error[1024];
@@ -1561,6 +1559,7 @@ static int transcode_init(void)
 
     /* for each output stream, we compute the right encoding parameters */
     for (i = 0; i < nb_output_streams; i++) {
+        AVCodecContext *icodec = NULL;
         ost = output_streams[i];
         oc  = output_files[ost->file_index]->ctx;
         ist = get_input_stream(ost);
@@ -1684,7 +1683,11 @@ static int transcode_init(void)
                 (video_sync_method ==  VSYNC_CFR ||
                  (video_sync_method ==  VSYNC_AUTO &&
                   !(oc->oformat->flags & (AVFMT_NOTIMESTAMPS | AVFMT_VARIABLE_FPS))))) {
-                ost->frame_rate = ist->st->avg_frame_rate.num ? ist->st->avg_frame_rate : (AVRational){25, 1};
+                ost->frame_rate = ist->framerate.num ? ist->framerate :
+                                  ist->st->avg_frame_rate.num ?
+                                  ist->st->avg_frame_rate :
+                                  (AVRational){25, 1};
+
                 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
                     int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
                     ost->frame_rate = ost->enc->supported_framerates[idx];
@@ -1721,9 +1724,10 @@ static int transcode_init(void)
                     ost->filter->filter->inputs[0]->sample_aspect_ratio;
                 codec->pix_fmt = ost->filter->filter->inputs[0]->format;
 
-                if (codec->width   != icodec->width  ||
-                    codec->height  != icodec->height ||
-                    codec->pix_fmt != icodec->pix_fmt) {
+                if (icodec &&
+                    (codec->width   != icodec->width  ||
+                     codec->height  != icodec->height ||
+                     codec->pix_fmt != icodec->pix_fmt)) {
                     codec->bits_per_raw_sample = 0;
                 }
 
@@ -1744,7 +1748,8 @@ static int transcode_init(void)
                 FILE *f;
 
                 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
-                         pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
+                         ost->logfile_prefix ? ost->logfile_prefix :
+                                               DEFAULT_PASS_LOGFILENAME_PREFIX,
                          i);
                 if (!strcmp(ost->enc->name, "libx264")) {
                     av_dict_set(&ost->opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
@@ -1938,13 +1943,13 @@ static int need_output(void)
         OutputFile *of       = output_files[ost->file_index];
         AVFormatContext *os  = output_files[ost->file_index]->ctx;
 
-        if (ost->is_past_recording_time ||
+        if (ost->finished ||
             (os->pb && avio_tell(os->pb) >= of->limit_filesize))
             continue;
         if (ost->frame_number >= ost->max_frames) {
             int j;
             for (j = 0; j < of->ctx->nb_streams; j++)
-                output_streams[of->ost_index + j]->is_past_recording_time = 1;
+                output_streams[of->ost_index + j]->finished = 1;
             continue;
         }
 
@@ -1954,10 +1959,11 @@ static int need_output(void)
     return 0;
 }
 
-static int select_input_file(void)
+static InputFile *select_input_file(void)
 {
+    InputFile *ifile = NULL;
     int64_t ipts_min = INT64_MAX;
-    int i, file_index = -1;
+    int i;
 
     for (i = 0; i < nb_input_streams; i++) {
         InputStream *ist = input_streams[i];
@@ -1968,12 +1974,12 @@ static int select_input_file(void)
         if (!input_files[ist->file_index]->eof_reached) {
             if (ipts < ipts_min) {
                 ipts_min = ipts;
-                file_index = ist->file_index;
+                ifile    = input_files[ist->file_index];
             }
         }
     }
 
-    return file_index;
+    return ifile;
 }
 
 #if HAVE_PTHREADS
@@ -2111,13 +2117,134 @@ static void reset_eagain(void)
         input_files[i]->eagain = 0;
 }
 
+/**
+ * Read one packet from an input file and send it for
+ * - decoding -> lavfi (audio/video)
+ * - decoding -> encoding -> muxing (subtitles)
+ * - muxing (streamcopy)
+ *
+ * @return
+ * - 0 -- one packet was read and processed
+ * - AVERROR(EAGAIN) -- no packets were available for selected file,
+ *   this function should be called again
+ * - AVERROR_EOF -- this function should not be called again
+ */
+static int process_input(void)
+{
+    InputFile *ifile;
+    AVFormatContext *is;
+    InputStream *ist;
+    AVPacket pkt;
+    int ret, i, j;
+
+    /* select the stream that we must read now */
+    ifile = select_input_file();
+    /* if none, if is finished */
+    if (!ifile) {
+        if (got_eagain()) {
+            reset_eagain();
+            av_usleep(10000);
+            return AVERROR(EAGAIN);
+        }
+        av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from.\n");
+        return AVERROR_EOF;
+    }
+
+    is  = ifile->ctx;
+    ret = get_input_packet(ifile, &pkt);
+
+    if (ret == AVERROR(EAGAIN)) {
+        ifile->eagain = 1;
+        return ret;
+    }
+    if (ret < 0) {
+        if (ret != AVERROR_EOF) {
+            print_error(is->filename, ret);
+            if (exit_on_error)
+                exit_program(1);
+        }
+        ifile->eof_reached = 1;
+
+        for (i = 0; i < ifile->nb_streams; i++) {
+            ist = input_streams[ifile->ist_index + i];
+            if (ist->decoding_needed)
+                output_packet(ist, NULL);
+
+            /* mark all outputs that don't go through lavfi as finished */
+            for (j = 0; j < nb_output_streams; j++) {
+                OutputStream *ost = output_streams[j];
+
+                if (ost->source_index == ifile->ist_index + i &&
+                    (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
+                    ost->finished= 1;
+            }
+        }
+
+        return AVERROR(EAGAIN);
+    }
+
+    reset_eagain();
+
+    if (do_pkt_dump) {
+        av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
+                         is->streams[pkt.stream_index]);
+    }
+    /* the following test is needed in case new streams appear
+       dynamically in stream : we ignore them */
+    if (pkt.stream_index >= ifile->nb_streams)
+        goto discard_packet;
+
+    ist = input_streams[ifile->ist_index + pkt.stream_index];
+    if (ist->discard)
+        goto discard_packet;
+
+    if (pkt.dts != AV_NOPTS_VALUE)
+        pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
+    if (pkt.pts != AV_NOPTS_VALUE)
+        pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
+
+    if (pkt.pts != AV_NOPTS_VALUE)
+        pkt.pts *= ist->ts_scale;
+    if (pkt.dts != AV_NOPTS_VALUE)
+        pkt.dts *= ist->ts_scale;
+
+    if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
+        (is->iformat->flags & AVFMT_TS_DISCONT)) {
+        int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
+        int64_t delta   = pkt_dts - ist->next_dts;
+
+        if ((FFABS(delta) > 1LL * dts_delta_threshold * AV_TIME_BASE || pkt_dts + 1 < ist->last_dts) && !copy_ts) {
+            ifile->ts_offset -= delta;
+            av_log(NULL, AV_LOG_DEBUG,
+                   "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
+                   delta, ifile->ts_offset);
+            pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
+            if (pkt.pts != AV_NOPTS_VALUE)
+                pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
+        }
+    }
+
+    ret = output_packet(ist, &pkt);
+    if (ret < 0) {
+        av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
+               ist->file_index, ist->st->index);
+        if (exit_on_error)
+            exit_program(1);
+    }
+
+discard_packet:
+    av_free_packet(&pkt);
+
+    return 0;
+}
+
 /*
  * The following code is the main loop of the file converter
  */
 static int transcode(void)
 {
-    int ret, i;
-    AVFormatContext *is, *os;
+    int ret, i, need_input = 1;
+    AVFormatContext *os;
     OutputStream *ost;
     InputStream *ist;
     int64_t timer_start;
@@ -2136,108 +2263,29 @@ static int transcode(void)
         goto fail;
 #endif
 
-    for (; received_sigterm == 0;) {
-        int file_index, ist_index;
-        AVPacket pkt;
-
+    while (!received_sigterm) {
         /* check if there's any stream where output is still needed */
         if (!need_output()) {
             av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
             break;
         }
 
-        /* select the stream that we must read now */
-        file_index = select_input_file();
-        /* if none, if is finished */
-        if (file_index < 0) {
-            if (got_eagain()) {
-                reset_eagain();
-                av_usleep(10000);
-                continue;
-            }
-            av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from, finishing.\n");
-            break;
+        /* read and process one input packet if needed */
+        if (need_input) {
+            ret = process_input();
+            if (ret == AVERROR_EOF)
+                need_input = 0;
         }
 
-        is  = input_files[file_index]->ctx;
-        ret = get_input_packet(input_files[file_index], &pkt);
-
-        if (ret == AVERROR(EAGAIN)) {
-            input_files[file_index]->eagain = 1;
-            continue;
-        }
+        ret = poll_filters();
         if (ret < 0) {
-            if (ret != AVERROR_EOF) {
-                print_error(is->filename, ret);
-                if (exit_on_error)
-                    exit_program(1);
-            }
-            input_files[file_index]->eof_reached = 1;
-
-            for (i = 0; i < input_files[file_index]->nb_streams; i++) {
-                ist = input_streams[input_files[file_index]->ist_index + i];
-                if (ist->decoding_needed)
-                    output_packet(ist, NULL);
-            }
-
-            if (opt_shortest)
-                break;
-            else
+            if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN))
                 continue;
-        }
-
-        reset_eagain();
-
-        if (do_pkt_dump) {
-            av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
-                             is->streams[pkt.stream_index]);
-        }
-        /* the following test is needed in case new streams appear
-           dynamically in stream : we ignore them */
-        if (pkt.stream_index >= input_files[file_index]->nb_streams)
-            goto discard_packet;
-        ist_index = input_files[file_index]->ist_index + pkt.stream_index;
-        ist = input_streams[ist_index];
-        if (ist->discard)
-            goto discard_packet;
-
-        if (pkt.dts != AV_NOPTS_VALUE)
-            pkt.dts += av_rescale_q(input_files[ist->file_index]->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
-        if (pkt.pts != AV_NOPTS_VALUE)
-            pkt.pts += av_rescale_q(input_files[ist->file_index]->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
-
-        if (pkt.pts != AV_NOPTS_VALUE)
-            pkt.pts *= ist->ts_scale;
-        if (pkt.dts != AV_NOPTS_VALUE)
-            pkt.dts *= ist->ts_scale;
-
-        if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE
-            && (is->iformat->flags & AVFMT_TS_DISCONT)) {
-            int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
-            int64_t delta   = pkt_dts - ist->next_dts;
-            if ((FFABS(delta) > 1LL * dts_delta_threshold * AV_TIME_BASE || pkt_dts + 1 < ist->last_dts) && !copy_ts) {
-                input_files[ist->file_index]->ts_offset -= delta;
-                av_log(NULL, AV_LOG_DEBUG,
-                       "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
-                       delta, input_files[ist->file_index]->ts_offset);
-                pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
-                if (pkt.pts != AV_NOPTS_VALUE)
-                    pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
-            }
-        }
 
-        if (output_packet(ist, &pkt) < 0 || poll_filters() < 0) {
-            av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
-                   ist->file_index, ist->st->index);
-            if (exit_on_error)
-                exit_program(1);
-            av_free_packet(&pkt);
-            continue;
+            av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
+            break;
         }
 
-    discard_packet:
-        av_free_packet(&pkt);
-
         /* dump report by using the output first video and audio streams */
         print_report(0, timer_start);
     }
@@ -2350,7 +2398,7 @@ static void parse_cpuflags(int argc, char **argv, const OptionDef *options)
 {
     int idx = locate_option(argc, argv, options, "cpuflags");
     if (idx && argv[idx + 1])
-        opt_cpuflags("cpuflags", argv[idx + 1]);
+        opt_cpuflags(NULL, "cpuflags", argv[idx + 1]);
 }
 
 int main(int argc, char **argv)
@@ -2390,11 +2438,6 @@ int main(int argc, char **argv)
         exit_program(1);
     }
 
-    if (nb_input_files == 0) {
-        av_log(NULL, AV_LOG_FATAL, "At least one input file must be specified\n");
-        exit_program(1);
-    }
-
     ti = getutime();
     if (transcode() < 0)
         exit_program(1);